How do pros customize their Pure Drives? I remember reading that Babolat doesn't have a pro room. So that means pros will customize with lead tape. And with most pros, can't see any visible lead tape on their racquets (with exception of Roddick as his racq has at 3&9) So, do most PD pros put lead under the bumper at 12? Anyone personally knows how most Babolat pros customize their PDs?