WEll how many of you are using 72" mowers. I have never ran one before and wasn't aware of the power requirements. I have 60 Dixie flatlander that is the best thing on gods Earth to me. The 25 hp kohler is great. But is it enough to run a 72"??. Dixie's spec sheet says there Single engine gas 72" will only run 8 mph, Well if you use this equation from Exmark the 72" it will not out mow a 60" Flatlander at 12-13 mph. 72" x 8mph /120 for 80% effiency = 4.8 a/hour 60" x 12mph /120 = 6 a/hour So what are some opinions on running 72" are they woth it or not and, what about power?