Hi Everyone.. After procrastinating for 1.5yrs, I've decided to purchase a mower to get away from hiring out lawn care. I have approx. 4 sloping acres to mow, give or take half an acre, with fairly severe sloping in spots.. Can't decide between a commercial walk behind or a garden tractor. I like the idea of attachment capabilities using the GT, but also concerned with its safe use on hills and the amount of time needed to mow compared to a commercial WB.. Any advice/insight would be greatly appreciated.