Hey all, I've been wearing these almost every day since '98 or '99 (can't remember when I got them). The only time I haven't worn them were a few years where I switched to a pair of Mars. They've been back to Oakley for three tune-ups and the latest were when I sent them in for Rx lenses (my first pair of Rx glasses). Recently the left temple bar feels tight while the right one feels a bit loose. I haven't messed with them myself and don't want to strip any threads. Should I send them back to Oakley or attempt to adjust them myself? Out of curiosity I checked the serial and I think it's pretty low... J001540. Maybe it's time to retire them and get a back up pair for my daily wear?