Part 4 of The Modern Builder's Stack — Not for sale yet. Get on the list.
The Modern Builder's Stack · Part 4

STOP OVERTHINKING EVERY PRODUCT.
START DECIDING IN 60 SECONDS.

6 focused videos. One simple framework. Three yes-or-no questions that replace your 15-minute research spiral with a 60-second decision you can trust.

Should I Buy This? - Course Preview

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Sound familiar?

What Sourcing Looks Like
When Every Product Takes 15 Minutes

You found a product. Potential profit looks good. Listing looks clean. Then you open 12 tabs. Keepa. Revenue calculator. Seller Central. Google. Reddit. Another calculator. You check offer counts, review seller feedback, look at sales rank history for six months.

Thirty minutes later, you still aren't sure. So you buy it anyway and hope for the best. Or you skip it and wonder if you just walked away from a winner.

That's not sourcing. That's gambling with extra steps.

The real cost isn't the one product you got wrong. It's the time you burned evaluating one product that could have been spent finding ten.

"I spend more time researching products than actually buying them."
"I open so many tabs I forget what I was even looking at."
"I either overthink it and pass, or underthink it and get burned."
The core insight

We Evaluate Products in 60 Seconds. Here's Why That Works.

We've been selling on Amazon for over seven years. We've moved millions in product through this business. And a couple of years in, we realized something that changed how we source: more data doesn't mean better decisions.

We built a framework we call the 3-Step Check. Three questions. Yes or no. Sixty seconds. That's the entire evaluation.

1, 2, 3. Too many.

If you need more than three data points to decide, you're overcomplicating it. More data creates more doubt. More tabs create more confusion. More time per ASIN means fewer ASINs evaluated, which means fewer winners found.

You only need to be around 50% accurate when testing products to build a thriving book of business. Think about that. You need to be right about the same number of times that you're wrong. Not more often. Just about even.

And even the ASINs that don't become replenishable? They aren't failures. You learned something. You got customer feedback. You built your seller reputation. You moved inventory. That has value.

"The resellers spending 30 minutes per ASIN aren't more accurate than the ones spending 60 seconds with the right framework. They're just slower."

They evaluate fewer products. They find fewer winners. And they burn out faster because every sourcing session feels like a research project.

Progress beats perfection. Consistency beats intensity. Speed beats hesitation.

The shift that changes everything

Speed isn't the enemy of accuracy. Overthinking is. The 3-Step Check gives you a repeatable framework that replaces your 15-minute research spiral with a 60-second decision you can trust.

The mindset shift

The Constraint Shift
That Changes Everything

Old Constraint
"I need to analyze every data point before I buy"
  • Opens 12 tabs per product
  • Spends 15–30 minutes per ASIN
  • Decision fatigue after 5 products
  • Still not sure at the end
  • Fewer products evaluated per session
New Constraint
"I need three yes-or-no answers in 60 seconds"
  • Three questions. One chart. Done.
  • 60 seconds per ASIN
  • Consistent energy through the session
  • Clear yes or no every time
  • 10x more products evaluated per session

Beliefs that are holding you back:

"More research means better decisions." Not when it leads to decision fatigue. After the third data point, you're not getting more accurate. You're getting more anxious.

"I need to check every seller, every price point, every review." You need three things. Velocity. Capital protection. Profit potential. That's it.

"If I can't be 100% sure, I shouldn't buy." You only need to be about 50% accurate. Test it. Learn from it. Move on.

Progress over perfection.

A good decision now beats a perfect decision never.

Consistency beats intensity.

Evaluate products every day, not in marathon sessions that burn you out.

Speed over hesitation.

Three questions. Yes or no. The 3-Step Check keeps you moving.

The framework

Three Questions. Yes or No.
That's the Entire Framework.

1. Sales Velocity

"Does this product actually sell?"

Look for the yellow "Monthly Sold" line on the Keepa chart. That's your velocity signal.

If there's no yellow line anywhere on the chart, move on. No velocity means no sales. Don't guess. If you want your capital turned around in four to six weeks, make sure the velocity is there first.

Done in seconds. Not minutes.

2. Capital Protection

"Is my money safe?"

Visualize your break-even price as a horizontal line on the chart. Where does the buy box sit relative to that line?

If price stays below your break-even for 10+ days at a stretch, it's a no. If it dips but always pops back up, you're protected. No guarantees, but the pattern tells you where the odds are.

Pricing volatility can be your friend.

3. Potential Profit

"Can I actually make money?"

Target a minimum 20–40% ROI after all ASIN-level expenses. Not gross margin. ROI.

Use historical pricing evidence on the Keepa chart, not the current buy box price. The buy box is a snapshot. History is the pattern.

You sell regardless of who holds the buy box.

But before you even run the 3-Step Check, there's a pre-flight inspection.

Brand triangle: match the brand name across the title, image, and brand field. You need at least two of three to match. If the brand in the title says one thing and the brand field says another, that's a red flag.

Can you supply everything listed? Is the listing clean and unambiguous? If any answer is no, skip it. You've got thousands more to look at.

Pre-flight

Pre-flight takes five seconds. It saves you from wasting sixty on a listing that was never viable.

What's inside

Inside Should I Buy This?

6 focused video training modules. No fluff. Each video teaches one specific part of the decision framework, then you practice it.

1
The Decision Problem
Understand why spending 10-30 minutes analyzing a single product is costing you money in two ways: wasted time and missed opportunities. Learn the 3-Step Check. Three questions, yes or no, in 60 seconds. Discover why you only need to be around 50% accurate when testing products, and why the ASINs that don't become replenishable still aren't failures.
2
Pre-Flight Inspection & Bridging the Gap
Before you run the 3-Step Check, make sure you're not wasting time on garbage. Learn the brand triangle: match the brand name across the title, image, and brand field. See real examples of clean listings, misbranded listings, confusing bundles, and kits you can't fully supply. Then learn to bridge the gap. Only buy from brand-authorized distributors and trusted retail sources.
3
Velocity Check
The first check: does this product actually sell? Learn to look for the yellow Monthly Sold line on the Keepa chart. If there's no yellow line anywhere on the chart, move on. If you want your capital turned around in four to six weeks, velocity comes first. See how the yellow line is a trailing indicator, how to interpret it alongside sales rank and offer count, and how diverging lines signal strong demand. Includes examples of seasonal items, gift items, and how to spot the Amazon smile pattern.
4
Capital Protection Check
The second check: is my money safe? Learn to visualize your break-even price as a horizontal line on the Keepa chart. If the buy box or new price stays below your break-even for more than 10 days at a stretch, it's a no. If it dips below but always pops back up, you've got capital protection. No guarantees, but pricing volatility can be your friend.
5
Potential Profit Check
The third check: can I actually make money? Target a minimum 20–40% ROI after factoring in all ASIN-level expenses. Learn to find your optimal starting sell price using historical pricing evidence on the Keepa chart, not the current buy box price. Understand why the buy box is multidimensional and why you sell regardless of who holds it.
6
Putting It All Together
Watch the complete 3-Step Check applied live on real ASINs from a lead vault. See how pre-filtering for velocity and capital protection in a database tool makes the process even easier. Walk through several real product evaluations start to finish. Get your challenge: run the 3-Step Check on 10 ASINs and time yourself.

Total training time: About 90 minutes. Then you're making faster, more confident decisions for good.

Everything included

What You're Getting

  • 6 focused video training modules Included
  • The 3-Step Check Framework (Velocity, Capital Protection, Profit) Included
  • Pre-Flight Inspection Checklist Included
  • Real Product Evaluations with Live Walkthroughs Included
  • The 60-Second Decision Process Included
  • Lifetime access — rewatch anytime, no subscription Included
Right fit?

Who This Is For
(And Who Should Skip It)

This is for you if:

  • You already have Keepa set up (you completed Quick Start or equivalent)
  • You're making buy decisions but you're not confident in the data backing them up
  • You've been burned by slow inventory or unexpected price crashes
  • You're stuck in the 12-tab research spiral and you know you're overthinking it
  • You want speed WITHOUT sacrificing accuracy

This is NOT for you if:

  • You haven't set up Keepa yet (start with Keepa Quick Start first)
  • You already have a working decision system you're happy with
  • You're not doing online arbitrage, retail arbitrage, or wholesale on Amazon
  • You want someone to analyze data for you instead of learning to read it yourself
The bigger picture

Part 4 of
The Modern Builder's Stack

This is the final piece. You've built the ungating foundation, the sourcing workflow, and the data layer. Now you learn to make the decisions that turn all of that infrastructure into profit.

Part 1 Ungating Solved Know exactly what brands and categories you're approved to sell. Build your sourcing around your approvals, not against them.
Part 2 Sourcing Solved Match 10,000+ ASINs to retail sources in under 10 minutes. The bulk sourcing workflow that changes how you find products.
Part 3 Keepa Quick Start Set up, configure, and actually use every Keepa feature. The foundation for every data decision you'll make.
You Are Here · Part 4 Should I Buy This? The 3-Step Check. Three questions, yes or no, in 60 seconds. Confident buy decisions backed by real data.

Old-school sellers hunt for deals every day and start from zero every morning. Builders create infrastructure that works whether they're actively sourcing or not. The Stack is that infrastructure.

Coming soon

One Bad Buy Decision
Costs More Than This Entire Training

One buy where you skipped the velocity check and your inventory sat for three months. One buy where you ignored the pricing history and the buy box dropped below your break-even for months. One buy where you chased the current price instead of checking the historical pattern and your actual ROI came back in single digits.

How many questionable buy decisions in the last month? How many times did you think "I think this looks okay" instead of "I know exactly what this data is telling me"?

This training likely costs less than one bad buy decision. And it prevents hundreds of them.

Should I Buy This?

The complete decision framework for Amazon resellers.
Three questions. Yes or no. 60 seconds.

Pricing announced at launch · Enrollment not open yet

  • 6 focused video training modules
  • The 3-Step Check Framework (Velocity, Capital Protection, Profit)
  • Pre-Flight Inspection Checklist
  • Real product evaluations with live walkthroughs
  • The 60-Second Decision Process
  • Lifetime access — one-time payment, no subscription

My Personal Guarantee

Action
Based
Guarantee

Do the work. If it doesn't deliver, I'll make it right.

If you complete all six modules, apply the 3-Step Check to at least 10 ASINs, and honestly feel it hasn't improved your decision speed and confidence, email brian@officialolsons.com and we'll make it right. No hoops. No hassle.

We've been doing this for over seven years. We're not worried about refunds. We're worried about sellers who keep overthinking when they don't have to.

Before you ask

Frequently Asked Questions

It's strongly recommended. This training assumes you have Keepa configured and you know how to navigate Product Finder and Product Viewer. If you're starting from scratch, complete Keepa Quick Start first.
About 90 minutes total across 6 modules. Each video covers one specific piece of the framework. No filler. No 47-module course you'll never finish.
Yes. The 3-Step Check works for any reselling model: online arbitrage, retail arbitrage, or wholesale. The framework evaluates listings, not sourcing methods.
If you already have a decision framework you trust and you're making confident buy decisions in under a minute, you probably don't need this. If you're still second-guessing yourself or spending 15 minutes per product, this will fix that.
Keepa is all you need for the 3-Step Check. When you're ready to store and organize your viable ASINs, we use 3P Mercury's Lead Vault, but even a spreadsheet works in the beginning. That comes later in the workflow.
If you complete all six modules, apply the 3-Step Check to at least 10 ASINs, and honestly feel it hasn't improved your decision speed and confidence, email brian@officialolsons.com and we'll make it right.

You've Got Two Choices

Option 1
Keep doing what you're doing. 15 minutes per product. 12 tabs open. Second-guessing every buy decision. Hoping the chart is telling you what you think it's telling you.

Or worse — burn out and stop sourcing altogether.
Option 2
Learn the 3-Step Check. Three questions. Yes or no. 60 seconds. Learn the Preflight Inspection. Source with confidence instead of hope.

Evaluate 10x more products per session. Make decisions backed by data, not anxiety.

"Spend 90 minutes learning this framework. Then apply it to your next sourcing session. Watch how many more products you can evaluate. Watch how much more confident you feel. And watch what happens when you stop overthinking and start testing."

— Brian Olson

The Official Olsons

P.S. If you're on the fence, ask yourself this: how many buy decisions have you made in the last month where you weren't sure about the data? How many of those turned out to be mistakes? This training prevents all the future ones. Get on the list. Be first when enrollment opens.

P.P.S. This is the final piece of The Modern Builder's Stack — a four-part series built around one idea: stop hunting and start building. You've got the ungating, the sourcing workflow, and the data foundation. This is where you learn to make the decisions that turn all of that infrastructure into profit. Start with Part 1 — Ungating Solved.