I have a 20 XD with a 250 Optimax. My torquemaster went out 2 weeks ago and I bought a 1.62 sportmaster to replace it. I have a 27p Trophy prop on it which is the same one I have with the TM lower. I got the boat back and was out on it Friday. I had a half tank of fuel. Full livewells and 3 people in the boat and it was hell getting it on plane. When I let 1 guy out to go get the truck me and my buddy went down the lake. It was much better getting on plane but before I couldn't even feather it. I had to hold it wide open and whenever I would try to feather it it would start falling back in the hole. I have vented plugs in all of the holes but 1. What do I need to start with to try to figure this out.