I demo'ed a 60" Hustler with the 31 Kaw last week and was very impressed. It would cut at full speed and leave a decent enough finish. The dealer had a 66" on the floor with the same 31 Kaw, so I bought it. I used it today for the first time, and am very disappointed. Same property, same growth, would not cut anywhere near as well as the 60". I am hoping the dealer and Hustler will exchange the mower for a 60". Anyone else run into a similar issue?