Well took delivery of my Super Z yesterday and i just have to say this thing is awesome. I feel like a little kid again. Have not had a whole lot of time on it yet. This is my first Z mower so Its going to take a little time to get used to the controls. The controls on the Super Z are a little more touchy then the regular Z. You dont have to move the controls very far to be moving quit fast. Sometimes I think this thing goes faster than 15mph. I'm going to have to have someone clock me on radar.