Can I get some opinions on which is better and for what. I see a lot of walk behinds on this site. In my area, I see all riders and push mowers. I have two ZTR's. I have 6 commercial accounts, one of them is about an acre. The rest are smaller, Cracker Barrel, Red Lobster, Tractor Supply, and Starbucks. All pretty flat with a lot of curbs and smaller areas. Thanks for your help.