Originally Posted by Povl Carstensen
Gamma quarter inch leadtape is 1/4 gram pr inch, so that would be about 2 grams. Very likely for matching purposes. If otherwise, I believe the rackets would be organized more systematically. Just my 2 c.
Also, I dont think anyone here has ever seen Federer change racket for serving/recieving.
He changes every 8 games. I've weighed the tape and it weighs more than that on a digital scale, but that's with the tape backing on. I may have gotten a bad read.