I repowered my 16 action craft with 90 2 stroke. Power tech recomended a 4 blade 13x15 prop. I'm getting 5000 rpm wot. I think I dont need a 4 blade because I'm not using a jack plate. I talked to Ken from prop gods which is a super cool dude recomended I should get a 3 blade 13x14. I appreciate any suggestions on skiff.