I got yesterday my Wilson K Factor Six One 95 (18x20) racket. Inside the racket nylon bag was a small W letter made by rubber. I thought that it must be a shock dampener. I did not know where to place it but taking close looks at it and the racket I decided to put it on the racket. I would like you to tell me if I put it on the right spot and if it is really a dampener. Thank you.