Re: prop depth
MRMOTO, the design of the floats, the speed of the boat and the size of the motor all play a hand in the height of the motor. It is a hit and miss affair to a degree with a toon but I would start off with the anti ventilation plate , the plate just above the prop, just about level to start with the bottom of the pontoons. Better too low to start off than to high. Work from that starting point. Hard to say exactly with out seeing the boat run. Have fun.