I know some to most pro players have customized racquets, as I have seen a few up close and actually hit with a couple. What are some of your opinions of the flex of the racquets. Do you think that the flex rating is the same as the actual flex rating found on the racquets they use that are sold in the store. For example, a Babolat PD, does anyone think that Roddick, Moya's Babolats have a different flex than that found in the stores or is it the exact same racquet with just a bunch of tape. If companies do change the flex rating on their customized racquets for the players than that makes a significant difference in the type of racquet they use, since flex plays the major role in power level of a racquet. Just want to hear some opinions on this. Thanks.