Got a little less than a .5 acre and considering a 36" WB. Any suggestions? Seems like a ZTR would be overkill. How easy are WB's to operation and navigate around obsticles? I definately want to continue mulching so anyone better than the other. I've got a great Exmark and John Deere dealers right around the corner. There is a Toro dealer close as well, but never dealt with them.