I have a 2015 Z7 w/175 pro xs. 6" slidemaster, 3"p-p, tempest+24P, 5850-6000rpms (depending on chine), 65-68mph, 12' talons and bigger batteries. Put CB foil on and now getting awesome holeshot, but I want a bravo 1FS 4 blade for the acceleration, and handling. I fish small lakes in Illinois so I don't care if I lose some top speed. I've been told by several people that I need to go down 1-2 pitch with a 4 blade expecially on bigger diameter props. Now Mercury's site says to go UP 1 pitch with the bravo 1FS. Just called a prop dealer and explained what I was looking for, and he said no to the 22p that boating friends chose, and said go with a 25P. So, I think they are just looking at the same site I was. Does anybody have any experience with switching to one of these 4 blades, and did you go to a different pitch, and lastly what was the results? Thanks for any input!! Joe