Are the racquet sold at sports store chains, like Sports Authority or Dick's Sporting Goods, the same as the ones sold at tenniswarehouse or straight from the racquet company? I ask because I am looking to buy one from Dick's and I was lookingat it today and it feels the same but the specs are different. They are the same as the unstrung specs for the Wilson BLX Pro Open but it says "BASED ON UNSTRUNG RACQUET" inside the throat, which I have never seen before.