Hi folks, I am thinking about trading my Kubota ZD21 for a Kubota F2560 or F3060 frontrunner. I need something to remove snow, and will be buying a snowblower. Do any of you guys know anything about the Kubota F series? I am very satisfied with the cut of th ZD 21. However, I do not want to be disappointed with the F series machine. Also, I am looking at the rear discharge deck, how good are these decks for mowing? I know you guys are the experts and I am sure that I will get some good advice whether I am doing the right or wrong thing. Thanks for your help. Jon S.