Need 21" trim mower for residential work. Mower must bag well. Thinking of new Honda harmony 6.5 OHC mower or snapper hi vac (possibly commercial). Any suggestions? I like the hydro and the BBC on the honda. It should be fast enough to mow at a fairly brisk pace. Snapper hivac deck and slightly bigger bag are a plus. I know this mower is fast, but does it have many options in the 3-4 mph range? This mower may do 1 or 2 lawns a week. Which would be better? I also don't want to spend too much time with maintenance, other than changing oil, air filter, blade sharpening, etc.