After reading the Wake Tractor thread my mind couldn't help but explore how a center/forward drivers position slalom boat might be configured. @Edbrazil
mentioned he had approached Rob Shirley with the center drive idea way back. Don't know what his version would have looked like but I'm guessing not like the one below?
Benefits...moving the driver, passengers and fuel load forward should allow the engine mass to be moved backwards to keep everything balanced. This would also allow more passengers in front of the pylon and be a more social arrangement.
I am not an engineer or much of an artist but before you reach for your barf bags consider how strange a crew cab short box truck looked when they first came out. Now it is a long box regular cab truck, that used to be the norm, that looks odd to the eye.
Could be easily optioned with ballast for other large wake sports.