Clint r
Well-Known Member
Me too. My boat used to porpoise a bit at just below WOT. Mercury 115 two stroke. Best prop for mine was 13" x17p excellent hole shot and on plane in seconds . Still porpoised until I got a Doel Fin.
Owen I had a couple of friends had same problems...They put the dole fins on.... Made huge difference and no more porpoising...