I went to a Fury 4, 25P, on my 15 Cougar FTD, 250 ProXS. After speaking with Ivan at BCB, he had me to raise my SlideMaster up about 1/2 inch for a total of about 1″ above flush. However, understand that I have the 8″ jack plate. It comes out of the hole like a rocket. That new Fury 4 has a tremendous amount of lift and it is amazing the difference. Fully loaded I can about 70 by the GPS; plenty fast for me. I have twin talons as well, 52 gal of gas, 4 batteries, a ton of tackle and my 300 lb butt.