Visit your local camera store with your head (legs optional; I'm sure they have plenty on hand) and show them what you're seeing. Try some other heads while you're there, and decide if you have a broken head, a bum head, or perhaps your head doesn't like ball heads. I'm very happy with our Markins Q3 ballhead, and although my wife doesn't have the hang of it yet, she certainly doesn't think it's a bum head.