Never ever saw a top level race competitive J24 have bottom paint. Ever.
A bit of cleaning on the epoxy bottom and done.
Bottom paint on a J70 that is top level? Uttermost BS.
Jens' World Champion "Salsa" was one of the few that had bottom paint and was at the top.
Yes, forgot about him. I haven't seen any since Salsa.
Bottom paint is a rarity.
Seen any Melges 24 with bottom paint?
Marty Jensen does well with the ZigZag with bottom paint. Mike Dow used to run some too. But the top J/boats with bottom paint don't have it because they keep their boats wet - they have it because the class told them they had to put bottom paint on or they were DSQ.
The J/boat class told them to put bottom paint on? Or DSQ? I get it now.