I'm in the market too this winter to replace my 50" Dixie Chopper with the 27hp Generac. I'm looking at either the 60 or 72" Kubota ZD1211 with the Diesel engine. More than likely go with the 72" deck for both quicker mow times and higher blade tip speeds, and I want the diesel for more torque and hope to make it last and be my last mower purchase ever.