I've been noticing this over Lincecum's starts this season: he has packed on considerable upper-leg muscle mass. I was wondering where that extra 20 pounds they've been saying he gained in spring training went--the new Lincecum, more bootylicious than ever! Judging by his revitalized velocity, it was a good decision. (I may look around for HQ photos showing this difference; sorry for the mlb video screencaps)