Just wondering if anybody runs their business using only 21" mowers? There is a guy in my neighborhood who works out of a van with a helper. They bang out at least 4-5 houses an hour. He has at least 20 houses where I work. Seems pretty productive with low over head. He leaves the grass clippings at their curb. (he 100% legal if anybody was wondering). Anybody else run or seen a similar setup?