I’m have a 6.2 200 and ski behind a 5.7 prostar, 6.0 prostar, 5.7 196 and 2 different 200s with 5.3s and a 200 with the 6.0
I use B1 on all of them and all feel good Of course I have @Mrs_MS driving most of the time but my drivers are all good. When I was skiing events it was always the big engines in the Malibu that would have me moving to C1