Had a 98 1660 Lund Pro V tiller, 50 hp Mariner 4 stroke, and experimented alot with props. Settled on a 12 pitch stainless (Vengenance I think). Motor was all the way down. I don’t know what your boat is rated at, but if mine had been a console, it would have been rated at 115 hp (but only 60 hp as a tiller) I think many tillers ratings that come in console also, are underpowered for the weight of the boat. Finally concluded that 12 pitch performance was the best I could do for the situation.