G'Day My new American Friends! I run a mowing business on the South Coast Of New South Wales, Australia. I have just purchased a Exmark Navigator after 3 Walkers. Have I made the right choice? Also, I have a Grasshopper 227 and have rebuilt the Mandrels 3 times in 1100 hours, is this normal in the Northern Hemisphere? Look forward to conversing with everybody. Oz.