Anybody know of a way to tune down Hydros. We have an 08 Z Master 558 with 52" deck and 28 hp kaw. Our 60" with 29 DFI Kaw is real smooth. The 52 is so jumpy it is hard to keep it straight, and it wants to spin going up a hill. You can lower the throttle and it is smooth then, but not really a good thing to do all the time. I know very little about hydros and don't want to take it to the dealer because we are behind already and it doesn't affect getting the work done. The dampeners are already at full stiffness. Adjusting tracking won't help either because it is like this in both forward and reverse. Any help would be appreciated.