I have seen two forms of Wilson ncode ntour 95 tennis racquet on the market (product number T7655 and T5644S). I wonder if there are any technical or structural differences between the two, besides that T5644S is pretrung and T7655 is not. At the Dick's Sporting Goods website, the description of T5644S is "Ntour 95 with Ncode technology ". http://www.*************goods.com/product/index.jsp?productId=2536850 This is very similar to that of T7655. http://www.amazon.com/Wilson-nCode-Ntour-Tennis-Racquet/dp/B0007RVIN4 I asked the Wilson peeople online and this is that I got-- "They are two different racquets. The T7655 is the NTour 95, a perfirmance racquet. The other is a Tour 95 prestrung perforamnce value racquet." Could anyone tell me whether these two racquets are actually the same, only marketed under two different covers? Thanks!