Rock it man, I had Bennett trim tabs on my Advantage Sport Cat when I first got it with a stock motor. They were mounted over the tunnels. They did help quite a bit getting on plane. The Sport Cat ain't so great out of the hole. I had to get rid of them though when I went with external steering. The rams mounted right where the Bennetts did on the transom Now I have fixed "tunnel tabs" for the porpoise. They work great. I guess I could put hydraulic ones back on the outter edges of each sponson like they do on vees.