I recently added some weight in the butt caps of two of my rackets using TW shown fishing weight and cotton balls method. While playing a league match, it was a complete disaster. The weights came off the cotton and started rattling inside the racket. I changed my rackets but the other one did the same thing. I have heard you can do a much better job using silicon. Any one has information on how to add weight using silicon and where to get all the supplies for this? TW only seems to carry lead tape. Thanks a bunch.