Five dimensions, each scored 1–10:

Plainspoken (weight: 25%) — Sentence length, jargon count, filler word count. Shorter sentences and zero jargon score higher. "1680D sailcloth nylon" is specific, not jargon — it's the actual spec.

Confident (weight: 20%) — Presence of hedging language ("might," "could," "we think"), qualifying phrases, and exclamation marks. Direct factual claims score highest. No overselling.

Restrained (weight: 25%) — Urgency language ("limited," "don't miss," "act now"), capitalized words, exclamation marks, and emoji usage. Any urgency tactic drops the score significantly. This is the most heavily penalized dimension for the Yowie voice.

Respectful (weight: 15%) — Does the copy assume the reader knows gear? Does it explain obvious things? Does it condescend or over-explain? Higher scores treat the reader as experienced.

Dry (weight: 15%) — Presence of understated humor or tonal character without forced cleverness. A "we use it anyway" is dry. A "your adventure awaits!" is not.

Overall score = weighted average across all five dimensions. Scores above 8.5 indicate strong brand alignment. Scores below 7.0 indicate voice violations that would undermine audience trust.