I think a manual tranny becomes an extension of you, you don't even think about shifting..you shift, doesn't matter what the terrain. If it's to rough to shift your probably going fast enough for conditions or you need better suspension. My buggy is a 4-speed and the fun factor is 5X that of my Wildcat. They both have advantages and disadvantages. With a manual you can feather the clutch or kick your clutch, I do that all the time. You control the rpm's. If I had the option of a 4-speed in my Wildcat...hands down it would have 4-speed!