I've had my new 18/44 Fastrak for about two weeks now and I absolutely love it. Would highly recommend it to anyone for their personal homeowner use. However, I am trying to understand the height and level adjustment. Over the weekend, I adjusted the height and level according to the owners' manual instructions and things went pretty well. Got the height set such that the 3 inch setting has the blades between 3 and 3-1/8 inches. Problem is that now I can't set the deck above 3-3/4 inches. It will not reach the 4 inch hole or the transport position notch without hitting something on the underside of the tractor that stops it from coming all the way up. Any suggestions? Thanks.