I have cut residential for almost 6 years and have 15 yards. I do all of them with a 22" push mower! The reason is ive been saving all those years and this year im commericializing. I recently picked up a 66" huslter, 52" hustler, and a a trimstar. Now the bid im looking at is for my neighborhood. The current guys get about 19500 a year. i don't know the exact breakdown but i wanted to try to stay like a thousand under them. So it came out to like 550 a cut for 25 weeks. 500 for fertilizer. and i was thinking 80 an hour to weed wack. The are is on a steep hill maybe 300 by 30. they want it done 4 times a year. i was thinking 80 an hour to weedwack. a brush hog won't stay on the steep hill. Is that too high?