I have a TrollMaster that I used for the first time on Saturday. Easy to install, even for a non mechanical guy like me. It worked great and and I love it so far. It is very sensitive so I can make very minor adjustments in RPM's that would be tough to do with the throttle handle. When I hook up, I just push the run/idle button and it slows down the RPM's. When the time comes to put the lines back in the water I hit run/idle button again and the RPM's go right back to where it was when I hooked up. No more guessing on what the speed was when I hooked up. Let me know if you have any questions.