A lot of players choose their racquets based Tennis Warehouse reviews. This is not a stupid idea, since I think their reviews are usually quite spot on, but it's obviously a good idea to test the racquet yourself before you commit to a particular model. After all, a new tennis racquet isn't cheap. If you can get a lightly used one, you're usually better off.
Anyway, a racquet who gets a glowing review such as the Yonex Ai 98, certainly deserves a play test.
So now I have two Yonex AI 98 at home, strung with the excellent strings Völkl Cyclone and Yonex Poly Tour Pro (added some lead tape to one of them too).
You can buy Yonex AI 98 or the strings mentioned either at Tennis Warehouse, Tennis Express or Racquet Depot.