Primed Design A Cast Iron CAD practice
Primed.Design · A Cast Iron CAD practice
EDGE SPRINT · 02/05
The paid-entry offer · UK Amazon FBA

Two weeks. Fixed price. A written answer.

Before you spend £6,000+ engineering a unique product, the Edge Sprint tells you whether you should, and if so, how.

Edge Sprint
£1,250 + VAT
1–2 weeks · Delivered by Dave
  • Feasibility read for your category
  • IP first-pass (freedom-to-operate scan)
  • Account-health sanity check
  • FBA-readiness assessment
  • Four-outcome recommendation + 60-min call
Section 01 · What you get

What do I actually get for £1,250?

A decision-grade engineering assessment of one product, delivered as a written report and a 60-minute call, not a sales pitch.

  • Feasibility read. Can this product be engineered into something genuinely differentiated, for your category and price point?
  • IP first-pass. A freedom-to-operate scan on the obvious risks. We coordinate IP and compliance via partners — we do not provide legal advice.
  • Account-health sanity check. Is your Amazon account in a state where launching a new product is even sensible right now?
  • FBA-readiness assessment. Does the manufacturing path we’d recommend actually land FBA-ready stock, or create a fulfilment problem?
  • A four-outcome recommendation. One clear verdict on what to do next, plus a 60-minute walk-through call.
Section 02 · Scope

What’s not included?

The Sprint is a diagnostic, not the engineering. It deliberately stops short of four things.

  • Full engineering drawings or CAD. That’s the Design Phase (from £6,000 + VAT).
  • Tooling quotes from named suppliers. We scope the manufacturing approach and indicative cost; real RFQs come later.
  • A patent attorney’s opinion. We run a first-pass freedom-to-operate scan and coordinate specialists; we do not give legal advice.
  • Guaranteed Amazon outcomes. No one can promise a rank. We tell you whether the engineering is viable and worth it.
Section 03 · Fit

Is this built for a seller like me?

It’s for established Amazon sellers weighing real money against a real product decision, not for idea-stage founders.

The Sprint fits if:

  • You already run a real Amazon business with revenue, not an idea you saw on Instagram.
  • You’ve spotted a product opportunity, or you suspect your current white-label SKU is being commoditised out from under you.
  • You can treat £1,250 as decision-grade research, cheaper than betting £6k+ on a guess.
  • You’re prepared to act on the recommendation either way, including a recommendation not to proceed.
Section 04 · The deliverable

What if the answer is “don’t bother”?

Then you’ve spent £1,250 to avoid a £6,000+ mistake, and that’s a good outcome, not a failed one.

Every Edge Sprint concludes with exactly one of four recommendations:

A · Proceed

Proceed to Design Phase

The product’s viable, the IP looks clear enough, the path is sound. We scope the £6k Design Phase next.

B · Advisor Block

Use an Advisor Block

You don’t need the full engagement yet, you need a few hours of engineering input. £100/hr in 5- or 10-hour blocks.

C · Fix first

Fix account-health first

The product idea holds, but your account isn’t in shape to launch. We tell you what to fix; you come back when ready.

D · Don’t proceed

Don’t proceed

And we tell you exactly why. The honest “no” is the deliverable.

Section 05 · How it runs

How does it work, and how long does it take?

Async-first, 1–2 weeks end to end, booking to a written report and a walk-through call. Most of it doesn’t need your calendar.

Day 0

Booking

You pay, you’re in. No discovery call to schedule first.

Days 1–3

Diagnostic

Short async forms: product, category, situation. ~30 minutes, on your schedule.

Days 4–8

Engineering review

Feasibility, IP first-pass, manufacturing scoping. The part you’re paying for.

Days 9–10

Report

Written up: the verdict, the reasoning, the recommended path.

Day 10–14

Delivery + call

The report and a 60-minute walk-through with Dave.

Section 06 · Book

Book your Edge Sprint.

One short pre-qualifier form. Booking is the payment, there’s no free consultation step.

The Edge Sprint is how we find out whether we should work together. You’ll tell us your revenue band, category, product situation, and primary blocker; pick a slot; and pay. Then the diagnostic starts.

What it costs
£1,250 + VAT
Fixed price · 1–2 weeks · one product

No rollover, no credit toward later work, no time-limited discount. The Edge Sprint and the Design Phase are independent transactions.

Section 07 · FAQ

Frequently asked.

What if you recommend I don’t proceed?
One of the four outcomes is “don’t proceed”, and another is “fix your account health first”. Either way, you pay £1,250 and avoid a £6,000+ commitment that wouldn’t have worked. The honest answer is the deliverable. That’s the point of a paid diagnostic.
How do I know this will work for my product?
You don’t yet, that’s what the Sprint is for. It’s a fixed-price way to find out before you commit to engineering, specific to your category and price point.
I’ve been burned by agencies before. How is this different?
We’re an engineering practice, not a marketing one. We work on the product itself, geometry, tooling, freedom-to-operate, not your listings or ad spend. And the Sprint is delivered by Dave personally, not handed to a junior.
Can I skip the Sprint and go straight to engineering?
If you already own differentiated, IP-clear products and know exactly what you want engineered, talk to Dave directly about a Design Phase. The Sprint exists to de-risk the decision, if you’ve already made it, you don’t need it.
What if I can’t justify £1,250 right now?
Then the Sprint has already done its job, if a decision-grade assessment isn’t worth £1,250, a £6,000+ engineering commitment almost certainly isn’t the right move yet.
Who is the engagement contracted with?
Primed.Design is the trading name; the contracting entity is Cast Iron CAD Ltd, Companies House 07353071.

Primed.Design is Cast Iron CAD’s Amazon-seller practice. Led by Dave Lock personally, not a handoff. 40+ product development projects; University of Brighton Industrial Advisory Board.

If the Edge Sprint isn’t right for you, I’ll tell you.

That’s the whole point. A fixed price, a written answer, and a straight recommendation either way.

Book an Edge Sprint →