I am in the following predicament: I am writing a review of my three racquets to post here on this glorious forum, but before I finish my review, I need to clear up a detail about the latest addition to my collection. I had my new EZone Xi 98 wired with a set of Isospeed Axon Multi 1.25 mm gauge strings at 22 kg / 22 kg tension, by a shop that does not sell Yonex racquets. Only problem is, the sweetspot is tiny. Anything other than a bulls-eye sweetspot hit feels clunky. I feel only a robot or a 16.0 post-human tennis warrior could reliably keep hitting with this racquet in the good spot. Is it possible the sweetspot shrunk due to the shop not stringing my racquet correctly? Maybe cause they did not have the instructions for this model? I looked all over Yonex's site and around the net, and was unable to find any stringing instructions for the Xi 98. Or is it normal for a racquet with a 98 square inch head size to have a small sweetspot? My VCore Xi 100 which is strung with Tecnifibre X-One Biphase 1.30 mm strings at 23 kg / 23 kg tension has a larger sweetspot. Any advice?