Thinking about building a tunnel hull this winter, so I need to know what cavitation plate heights you people run. I'm NOT a racer, just a knock about guy who takes his grandkids for a ride now and then, so I don't want a 'scream the crap out of the motor' to get on plane setup.

Should I build the transom with the cav plate level (same height) with the bottom? Or should the center of the gear case be level with the bottom of the sponsons? (The sponsons will be about four inches below the flat bottom.)

Thanks!

Jeff