Methodology

The philosophy

Most product reviews answer the question “is this good right now?” A1Make answers a different one: “will this still be good in ten years?”

That changes everything about how you score. Launch-week polish matters less than the fifteenth year of parts availability. A brilliant feature matters less than a gasket you can replace. And no promise on a spec sheet outweighs a decade of documented survival in real hands.

The A1Make Score is a 0–100 rating built from six weighted criteria. The weights are public, the reasoning for every score is published in the review, and when we change the rubric we version it — this page describes methodology v1.0.

The six criteria

Criterion	Weight	What we ask
Build quality	25/100	Materials, construction, tolerances, and finishing. We favor overbuilt simplicity over fragile sophistication: fewer failure points, serviceable fasteners, materials that wear in rather than wear out.
Longevity track record	20/100	Documented real-world lifespan. A design that has survived 10, 20, or 50 years of continuous production and daily use outranks any promise on a spec sheet. New products start with a conservative score here by design.
Repairability & service access	20/100	Ease of disassembly, quality of documentation, availability of independent service. Glued-shut enclosures, paired parts, and vendor-locked service lose points; published manuals and standard fasteners earn them.
Parts availability	10/100	Spare parts supply — official, third-party, or salvage. Cross-generation compatibility and commodity components score high; proprietary consumables score low.
Cost-to-lifetime value	15/100	Purchase price divided by realistic service life, including maintenance. A $300 tool that serves 30 years beats a $60 tool replaced every 2 years.
Owner satisfaction consistency	10/100	Consistency of owner sentiment over the long haul — not launch-week reviews. We weight multi-year ownership reports and repurchase loyalty.

Three deliberate biases are worth calling out:

Track record beats promises. A product that has already survived twenty years of production and daily use starts ahead of any new design, however clever. New products can score well — but they earn longevity points conservatively until time does its work.
Repairability is weighted like a core feature, because for longevity it is one. Twenty points ride on whether the thing can be opened, serviced, and documented — as much as the entire longevity track record.
Value means cost per year, not price. A $300 tool that serves 30 years is cheaper than a $60 tool replaced every 2. Expensive products are never penalized for price alone — only for failing to convert price into decades.

The grade scale

A1 90–100 Generational. Built to outlive its first owner’s enthusiasm — and possibly its first owner.

A 80–89 Decade-class. A default recommendation; expect ten-plus years of honest service.

B 70–79 Dependable. Solid long-term value with a known weakness or two.

C 60–69 Conditional. Fine in the right use case; buy with eyes open.

D 0–59 Not rated for longevity. Below our bar for a durability recommendation.

The A1 grade is intentionally rare. It is reserved for products with multi-decade track records, living parts supplies, and repair cultures around them — things you could plausibly hand to the next generation. If more than a handful of products per category carry it, we’ve miscalibrated.

How we gather evidence

Longevity reports from multi-year owners — forums, repair communities, service technicians — weighted by time-in-use (1 yr / 3 yr / 5 yr / 10 yr+).
Teardowns and service documentation: published manuals, fastener choices, part diagrams, and whether independent repair is possible in practice.
Parts market checks: are spares available today, from whom, at what price, and does the supply look durable itself?
Production history: how long has the design run, and how have revisions affected quality (silent cost-downs count against a product).

Where evidence is thin, we say so in the review rather than inventing precision. Scores get revisited as evidence accumulates.

Editorial process

A1Make uses a human-first editorial pipeline. Every review carries two status fields in its metadata:

Stage	Meaning
`idea`	Candidate product, no draft yet
`ai-draft`	Structure and evidence assembled with AI assistance
`needs-human-review`	Draft complete, awaiting editor
`editor-approved`	A human editor has verified claims and owns the text
`published`	Live, and labeled with its status

Drafts assembled with AI assistance are labeled as such on the page until a human editor has verified every claim and score. We’d rather show you our pipeline than pretend we don’t have one.

Independence

Scores are never for sale. There is no price for a better number.
Affiliate links, where present, are transparently labeled and have no influence on rankings — the scoreboard order is computed from the rubric.
Sponsored placements, if we ever accept them, will be visually distinct, clearly labeled, and excluded from scoreboards.

Versioning

Version	Date	Changes
v1.0	2026-07-12	Initial public rubric: six criteria, A1–D grade scale

When weights change, historical scores are recomputed under the new rubric so every scoreboard stays internally comparable.