Was it really an upgrade, or was it just a lost cause? There have been a lot of mixed reviews of the Wilson Asian K90's. For users of the US k90 who thought that the racket was too heavy for them, the Asian k90 version seemed to be a good alternative, yet there have recently been a lot of members on TW who have strayed from the asian k90, or are listing them for sale in the For Sale section on these boards. I am left wondering what they didn't like about their frames, and what they ended up switching to. Also, have there been any members who have switched back to their US k-factor 90 's? The Asian version seemed to be an upgrade to the US spec version, but the flex rating was a lot lower than the US specs (68 vs 64) thus furthering the differences between the two rackets. I have personally hit with the Asian k90, and felt that it was too underpowered compared to the already underpowered US k90, but am left wondering if anyone else has further insight/details. This thread exists to provide both positive/negative feedback on the Asian K-Factor Tour 90, if anyone is interested in reading up on this stick before making a purchase.