I was watching WC 2006 XD Final NathanRobertson GailEmms vs AnthonyClark DonnaKellogg and I noticed that when Donna got a new shuttle(3-4 Robertson n Emms leading -game 1), she was rubbing the head of the shuttle against the strings before serving. Then at 11-7, Robertson n Emms still leading, Robertson got a new shuttle and he also rub the head of the shuttle against the strings of his racket. Just wondering if anyone has seen this behaviour and what is it for Maybe only english players do that?
Robertson was actually called by the umpire for this on one occasion. I can half-understand why. On the one hand, everybody uses the same shuttle, so there would be no discernible advantage to the offending side. However, it could be construed as "ball-tampering" (to borrow a cricket expression), and I suppose a rougher base would be friendlier to players who use a lot of cut shots...