i did a search and someone said he play mp 88 (blue) but from the video of mo 06 it seems different. someone knows?
All the ns9000's listed are the S (stiff) version. I wonder whether this is meant to cover both the S and X (extra stiff version) or whether all those players mentioned don't use the extra stiff. The fact that the at800 is mentioned in OF and DE versions tends to suggest that only the S version is used, but if that were the case I'm sure Yonex UK wouldn't just supply the ns9000x.
Recently Jens Eriksen started using the NS9000 and I think its the X version. Not 100% sure of the X part because I saw it, he was 2 metres away and walking. and obviously I didn't shout "Jens, wait! Hang on, let me see the rackets!" haha