I built my own balance board based on "Craig Sheppard's" sticky post (thanks by the way) except I used 7/16" dowel instead of 3/16". The problem is I can never get my racquet to balance exactly. For example: I'm balancing my M-fil 200 plus and once I get the butt to 12 1/2" (8pts. HL) the racquet will either topple one way or the other if I move it even 1/16" either way. I can never get it to balance out straigth the way I've seen on a post here. What could be the problem? Is it safe to say that the racquet is simply 8pts HL? Or could the balance board be way off? Why can't I get the racquet level? Thanks in advance.