Hi guys, looking to up grade to a ss prop and thinking about changing pitch a little to gain a little bit of speed. What I have now is a 50hp e-tec on a 17.5 Stratos 176xt bass boat, the prop is 13.5 x 15P and I run right at 30mph at 5700 rpms. Thinking about going to a 17P, I know I would lose...