[beradon]

I've tried everything to lift the bow of my 190 w/ T-top short of changing the prop. I've had it out about 1/2 dozen times under different circumstances, alone, with passengers, full tank/1/2 tank of fuel and at WOT she's plows-always. Obviously, if these worked on every boat, Yamaha and the other manufacturers would change the design of the lower unit. I agree that a different prop might life the bow but where do I get them? Do I just start buying new props and testing-hoping one will work? That would get kind of expensive and I could end up with 3 or 4 props that I have no use for. About 20 years ago I had a Scout that took forever to plane and I put a Doel-fin on it and worked great. Since then I thought that these things always improved performance but that doesn't seem to be the case. My boat went from a top speed of 39-40 (GPS) @ 6000 to 35-36 @ 5700. Its not rocket science to understand that if the bow isn't raised high enough, the increased drag is going to slow you down.