Very few players simply get their racquets, and apply lead at one location. You must realize that each racquet from the factory does not have the exact same specs, so adding the same ammount of weight in the same location on all their racquets would mean they'd all have different specs. Flavio Saretta is one of these players, who came to me asking for just add the same ammount of lead at the same position on all of his frames........but all of his frames had different weights, balances, swingweights, etc (before and after lead). All he cared about was that they looked the same. However, this is not the case with most players, as they usually only care how their frames perform not look. Their/people customizing their racquets goal of adding lead is to match the racquet(s) to a desired set of specs. Some players have their frames made at the factory so that there can be desired ammount of visible lead on each frame, and still be able to meet the "model" set of specs for their racquets.
And yes, WTA players have their racquets customized too. Its quite common, even at the junior and collegiate levels.
