I have tried the 26 chopper with this setup and it was pretty good, the rpm's were a little high though. I did not have GPS to check the speed, but I turned 6800 rpm and was moving pretty good. My son has a 28 chopper that I am going to try also. I ran the Mazco RE3 27 pitch and rpm's were the same. I was on fishing trip last weekend and propshaft broke, ruined lower unit. I have sportsmaster lower unit on the way. Maybe this will be a little diferent. Right now my motor is 1.5" above the pad.