I demoed the Hustler Super Z with the 60" rear discharge deck today and was not impressed at all. A more accurate statement would be I was very disapointed. The mower had a 25 Hp Kaw. It would bog if you got it up over 4-5 mph. I thought it would be able to run through the grass I was cutting. My Exmark 27hp 60" would cut it the same height at about 8-9 mph. I did have double on my Exmark. My dealer also brought a Super Z 27 hp 52" side discharge the would cut it the same height maybe a little faster than my Exmark. The 52" Hustler just had the stock blades. I was very impressed with the 52" Super Z but extremely disapointed with the 60" rear discharge.