[...] he didn't speak to reporters before or after the game, begging off beforehand and slipping out with earbuds securely in place shortly after the Giants secured their third straight win. [...] Bruce Bochy decided to skip Lincecum in light of his brutal struggles the past six outings, to give him time to work on his mechanics and take a mental break. Petit was more than impressive, pitching six innings, giving up one run, striking out nine, allowing zero walks. [...] oh yeah, setting a major-league record for consecutive batters retired. [...] if he starts warming up for a relief appearance this weekend at AT&T Park, you can be sure that the crowd will be deafening in its enthusiasm and support. Before his recent six-start slump, he spent a month being one of the Giants' most consistent and reliable pitchers. In other words, you would have sounded foolish a few weeks ago saying that Lincecum is done as a starter. [...] Bochy believes pitchers get out of sync because they're pressing mentally. In that game, Hector Sanchez was behind the plate, but he took a blow to the head in the fourth inning and came out of the game. Sanchez had become Lincecum's personal catcher, able to handle his changeup and block balls in the dirt. [...] Andrew Susac has been making a nice contribution, but he's a rookie, still learning the staff.