I have read several posts that have talked about making your own balancing board. I am cheap and impatient, so i would like to know the exact balance of my racquets without spending 30 bucks on a balancing board, and waiting a few days for it. I have read that it is realitively easy to do using a yard stick and dowel. Im not sure how to actually measure balance using these. They would tell me which side is heavier but not by how much.