Does anyone know what knot Federer has on his rackets. I've heard that he has to have the tie-off parrallel to the string bed otherwise he won't use the racket. I've tried searching but havent found anything. If there is something out there please point me in the right direction and i can take this one down. NikeUp p.s. have new pictures of the Special edition Rolland Garros Feathers to post later.