Just wondering how your mowers cut after 1500 hrs. I've never run a mower that long so I would be interested to see how they preform after a few years assuming the spindles are in good shape. Also is you mower still in good enough shape after you wear one engine out to invest in a new one? And will some of these diesel powered mowers last as long as the engine? It looks to me like most people keep mowers about 2000 hrs but if you have made an investment in a diesel powered or water cooled mower that will last longer than this what do you do. I am talking ZTR's here.