I picked up the 1996 MT20GHS w/48" deck. It cuts really well and is in good shape. The hydraulic controls need a little adjustment as it tends to want to drift backwards whenever it is in neutral. but other than that it runs great. The machine has 834 hours on it and I assume it has the original tires (drive) which appear to be fairly well worn. I had some difficulty driving across and/or up hills. Would new tires help with this problem? Is there a more aggressive tread that I should use other than the standard Walker turf tire? Thanks in advance!