Say I have a Toro 36" walk-behind with a sulky. What is the max size yard you would cut with it? What's the smallest? Say I don't have a sulky, what size yards then? Is there a point where a lawn would be too big to cut with a mower like this? Just want to kno what everyone thinks on this. This all being said if the mower tops out on speed at 5 mph, and is belt driven.