Wrong Category Enforcement

My guess would be: No changing his weight, after the ride has been recorded in ZP, would not change the W/kg for that particular ride. ( This is a guess and I would be happy to be put right by anyone who knows). Edit: if so therefore important to also look at kg column in ZP when checking through riders 20min W/kg performances for past 60 days to get the most accurate information.

That is also what I am assuming. If you ride around using a low weight, either yours or someone else’s, then I believe your category will be calculated on that weight until you remember to revert back to your correct weight.

Yes I agree and have commented on that point in another thread.

I think using lightest weight as opposed to current weight might have some benefits and prevent/reduce weight doping. However not ideal or likely to be supported by those sharing an account with a much lighter rider !!