I have a 15' starcraft bass boat with a 100 hp evinrude, 6 inch jack plate. Currently running a 13 3/8"×19 pitch 3 blade prop. My prop to pad is 4 1/4" below pad. I'm blowing the prop on straight runs and porpoises badly. If I trim or raise my jack plate any it porpoises bad and blows out. Is 4...
