It was part of a recent longer podcast - can't find to link(edit:added link below). But he spent a fair amount of time talking about string shelf life. I have a nice stash of Ernie's and D'Addario's. According to him, Ernie's sealed last 6 months in the package, and D'Addario's vacuum sealed packs last a year. Is this a wild exaggeration? I have strings on guitars longer than that, and they operate and sound fine. Also, had a bump defect recently and just wrapped a high grit sand paper around defect and buffed it out. String still sound great. WHAT IS GOING ON HERE?