I kid you not, the dealer I took my trimmer to today asked me if I would like to straight swap my RESIDENTIAL cub cadet 50" for his Gravely 60" outfront mower. My unit has 59 hours on it.....no problems with it, the guy that uses it, loves it. The thing, when sharpened blades are used, can give a decent cut at 90% full speed. His unit, 1790 hours on it...dealer owned and serviced since day 1. This thing looks pretty good but unfortunately, its pretty darn slow. My unit....22 hp (as I am sure you know) His unit....20 hp I am pondering cuz the guy using the resi unit has improved his skills considerably and I now trust him enough. Any and all suggestions would be greatly appreciated.