i have a z400 that has 24hrs on it... it was bought only to mow our 2ac empty neighborhood lot that we plan to build on in the future... the problem is, it cuts horribly! i have to go over the entire place 3 times to get a decent cut, and its only decent. i took the mower in at about 10hrs and explained this issue, they said one of blades needed sharpened. not fixed... i have it in for the 2nd time now for this same issue, and they are doing a fall/winter service. im actually extremely frustrated that im having to spend 6-7hrs on my lawn that should take 1-2hrs max!!! i can post pics of the horrible cutting if need be! just cant believe i spent 7k on this! does toro have a lemon buy back program if this problem persists???