I was wondering if anybody knows how long Wilson will continue to make the Kfactor Tour 90. I played with the Ncode Tour 90 for a few years and really liked the racquet, but then they discontinued it for Kfactor Tour 90. I'm starting to adjust my strokes to the Kfactor Tour 90, but I don't like having to change racquets every few years to a new model. I was wondering if it is just a money thing or if Wilson is really trying to improve the technology of the racquets? I see that Pete Sampras is still using the Ncode Tour 90. I guess he doesn't like the Kfactor Tour 90. I wonder were he gets his racquets from since Wilson stopped making them? Let me know what you think! Thanks!