alexpops
Platinum Member
Rule of thumb is 5hp pto per foot, so at 28hp at the pto you'd be between the 5 and 6 footer. If you're flat, mowing grass & not in speed racer mode, the 6 footer should be fine, you just may need to slow down a bit when in thicker stuff. The extra foot of width will make up for the slightly slower travel speed IMO.