ive been struggling to mow my grass for at least about 3 years now since my mower died. using tractor and 4' bushing for wide open and a walk behind for getting close to edges. I finally got the 16 year old grasshopper going again, it sat so long the tires would no longer hold air, I replaced the old turf tires with the ones with bar tread. the tire dont slip on hills anymore. it took less than a hour to get about 4 acres mowed, around rocks, trees buildings. these grasshopper mowers are tough as a tank when they run. I hope to never be without the zero turn again.