I am thinking seriously about getting a 60 " king Kutter finish mower for my Kubota B7600. I read in the owners manuel that they are for lawn grass only. Some of my area to mow is a little rougher than what I would call a lawn. How much roughness can a finish mower take. Also can you back up some with one? I don't mean mow backwoods, but sometimes you have to back up to catch an area in the corner, or something you missed. Ted Cary