I'm just getting into the biz. Most of the lawns that I'll be cutting for now will be between 4000-10,000 sf. Here in N.Ga there are many hilly properties as well as many trees.I was going to get a 21", but a few of you said that would be too small. What would y'all recommend for a mower that will allow me the flexibility to get around trees, in fenced areas, and be able to mulch or bag if needed. I plan to get a Dixie Chopper when my book of business and money allows, and then use the smaller mower for trimming and tight areas. I want to buy smart! Any replies would be greatly appreciated.