Well I finally broke down and had to buy a new set of mower. Couldn't rebuild the old ones to get one more season out of them. So I went shopping. Requirements 60", kubota diesel engine, easy of maintenance, etc Choices for kubota diesel powered: Exmark, Grasshopper, Kubota. after a demo. The clear choice was Kubota. Only machine I could sit on for 3 hours with out my back killing me from the poor ride. The added cost of the diesel will get paid back quicky. Off road diesel is pretty damn cheap compared to gas. Plus the maintenance is a breeze with this crank up front end to change the blades. Plus grease fittings on everything. Best part is 0% financing for 36 months. We should get 5 seasons out of these machines before they become back up units. The increased production and lower operating costs is going to save us $$$$$$$ I love the 28hp diesels. CAN YOU SAY POWER!!!!!!!!!!! wow, I mowed down my neighbors hay field, at almost full speed. Didn't even bog down.