I don't care if you can go 10mph with a mower and have good cut cause I would like to see a customer look out there window and see me going 10mph on there lawn I think they would have a heart attack and I would be out of a lawn. Besides it is not safe you have to look for sprinklers, rocks, and sticks. I do like the walker it is quite the rave here in Florida seems like everyone has one. I almost bought one but I bought a Z-Master but when I look into a new mower I will probably buy one because I can run a lot of different size decks on the same mower that would keep a lot of expenses down. Sorry to get of the subject.