I've had this sled for several years and have only used it to get around for ice fishing. Pulling gear over snow drifts I have only managed to reach speeds of 15mph give or take so it's always slow going. I have never taken it on trail rides, etc where I can go faster or at some cruising speed. Since there is no tach only a speedometer my question is what is the mid range speed for this sled when riding alone? I don't like to beat on my equipment and don't think of riding with full open throtle. So what's an average riding speed before you max out the engine, etc.