I may be looking to get a ZTR mower. but heres the catch: I only do 4 lawns right now (do this as a side gig from my regular job and school) and I am gonna try and pick up 2 or 3 more for next year. I can't really afford a good Commercial mower, so I was looking at a residential grade one. Thats about all I can afford, since I will need to get a trailer as well. Anyway, I am looking at 2 50" ones: the Toro Z5000 http://www.toro.com/home/zeroturn/timecutterz/z5000.html it has a 21 hp Kohler v-twin and top speed of 7 mph The Cub Cadet RZT50 http://www.cubcadet.com/webapp/wcs/stores/servlet/product_10051_14101_10231_33817_-1# 22 hp Kawasaki v-twin, top speed 6.0 mph I have always heard good about Toro, but I am leaning towards the Cub because everyone seems to praise Kawasaki engines on here. The Toro is $200 cheaper.