I know it is no longer made but I got a great deal on a Hustler Cat Diesel from my dealer. Its easter so I havent called them with the problem yet and thought someone here my give me an answer. I get this machine home and it is way slower than my gas powered Hustler. Ill bet if we were mowing a football field my gas powered mower would get across the field while the new one was on the 60 maybe 70 yardline. Is there a break-in period (it has 16 hours on it) or an adjustment? I was told it should mow at 15 and the gas powered unit run 13-14 mowing. Any help on this would be nice, Im 3 hours from my dealer and really dont want to take this unit back.