Sounds like you got it setup good then. I had a Tracker 175 with a 115 2 stroke and the best prop I ran on it was a 22" pitch Powertech PTR3. 3 blades handle great if you learn to trim down in the turns, I had a 6" jack plate on mine as well. Yours being a 4 stroke with a different gear ratio and higher RPM range than mine had you would be better off with a 19" pitch PTR3 if you decide to try one.
