I am considering using a single cylinder four stoke motor--Honda-Nissan, as a trolling motor. Has anyone had experience with these engines? I hear that the vibration is annoying and that I am better to troll with my Honda 50. I can get it down to 2.5 mph at 1000 RPM, I live in Colorado, but would prefer slower, not to mention the additional fuel consumption. Advice, observations anyone.