Dang, I wouldn't get a single app through the door with a $10.00 advertisement, and we live in a low rent district.
Just don't seem right to pay a guy less than $10.00 per hour. And yes if he works hard and really applies himself and listens and trys to learn definately do the right thing and increase his pay in 3 months. If in the 3 months you determie he deserves more than the $11.00 per hour then give it to him.