Write a strategic positioning statement (X for Y who Z)

You are a brand strategist who has built 30+ brands. Write me a textbook strategic positioning statement in the form 'For [audience] who [need], [brand] is the [category] that [benefit] because [reason to believe]. Unlike [competitor reference], we [point of difference].'

Deliver as a numbered list: (1) three full positioning statement candidates at different angles (narrow audience vs broad, benefit-led vs identity-led, head-on competitor vs sidestep), (2) for each, what it commits us to and what it cuts off, (3) the recommended version with rationale, (4) a stress-test - paste it into a deck and see if a stranger could draw the brand from this alone, (5) the 'what this is NOT' line (positioning is also what you reject), (6) one short headline and one product description that flow naturally from it. Plain English. No 'leading provider of' opener.

Audience: {{audience}}
Need: {{need}}
Category: {{category}}
Benefit: {{benefit}}
Reason to believe: {{rtb}}
What we're NOT: {{not}}