Does the Super Mini hold hills comparable to the mid sized Z? Will the hitch kit fit on the super Mini? I'm still thinking about just getting another mid sized Z. The only two things I like about the super Mini over the Z is the bigger pumps and the suspension seat. But then I lost width (hill stability) and the 5" deck. I think I can live with the smaller pumps. How much extra is the suspension seat? I didn't see the 52" with a suspension seat as an option.