I was hoping to get a ztr for next year, but I don't think I can justify spending that kind of money. I am now considering buying a Quick 36 Super Duty and I am wondering how long it will take me to mow an acre thats pretty much wide open. There are few obstacles and two trees in the whole yard. Anything commercial grade is going to be better than what I have now. I have a 42" Craftsman rider right now. It takes me about 45 minutes probably to cut as of now. How long do you think it would take me with the super duty? The quality of cut is probaby going to be better also.