Originally Posted by articfriends

Heres a question on stepped hulls, i understand all the theory, etc and how its supposed to help. I own a 33 scarab AVS, runs 85 w 500efis, the mpi 502 versions run 76 to 78ish. The boats titled as a 31, if you look at a slightly older 31 or 33 scarab they look identical except the bottom with its agressive steps. So, if it only makes them faster in smooth water, how come the non stepped versions are 6 to 10 mph slower in rough water and smooth water? How come.my boat still runs 84 or 85 in rougher water, how come the non stepped ones DONT go 6 to 10mph FASTER in rougher water. Serious question, thanks, Smitty