You are going to land yourself in a courtroom soon if your try to steal his customers. Even if you didn't sign a non-compete form he can still try to sue you. Will he win? probubly not because the courts cannot stop anyone from trying to make a living................but can you afford all the legal fees/lawyer fees that come with being sued? Is it really worth it? If you are as good as you say your are, or think you are then it should be very easy for you to land new clients and not have to deal with the courts.