I demoed the ZK today and all i can say is WOW!!!!! It had the 31HP Kaw with the 61" deck. Almost to much power for that machine. Wright is going to come out with a 72" ZK and a 52" ZK. The Mower stand plate was incredibly smooth. There are two springs under it and it literally felt like you were on a trampoline. It was a full floating deck which i loved. Its top speed was 14 M.P.H!! It was extremely fast for that size of a mower. My dealer told that that unit was going for $10,500!!!!! I thought that was one hell of a price for that mower and its the fact that its a Wright also. I think this might be my next mower instead of the fixed wright 52". Does anybody else have experience with the ZK. Give me some feedback. Tell me about your demo.