Merc 175 efi prop question

[1FASTLASER]

Hey Varmint! Good to c u around. I see that u are famiar with the older Nitro's in ability to run over 65. They finally got that fixed. The newer ones will behave with the newer hulls. First one I tried setting up was in 92 and it didnt matter WHAT u did.....hit 63 and the damn thing would start bow oscillating and get so violent u had to back her down. Anyways since they went to the 882 and 892 and now the Z series different ballgame. Buddy of mine has a 892 with 200 Merc flat on transom but mountedin second hole from highest running Tempest, the origi al Tempest.... Uh A45 if my memory aint failing and loaded for bear and full of fuel 2 people runs 68...69 get her light and can just touch 72

[arrowslinger#1]

Ok so I finally had time to play with my setup
i raised my motor to 3 1/4 prop to pad
it helped holeshot and brought my top end to 68
revs out at 5500 now

I really want to stick a 3 blade on here but nowhere to try befor I buy
rpm max on motor plate says 5650

should I stay at 25 pitch when swapping from a 4 blade 25 trophy plus?

[arrowslinger#1]

Also when I run this through a prop slip calculator I get 2-3%
tried a few ??