Over in the "Gut String Longevity" thread, it seems everyone gets years and years out of their Gamut plain-gut strings. One person said theirs was still going strong after 5 years! I bought my (varnished) Lyon G almost exactly a year ago, and just ordered a replacement. I felt the need to have a spare on deck because the old one has become rough in places and has begun to regularly spin off enough large hairs to make me nervous. The Pistoy D that is the same age also has a few minor hairs, but not nearly as much as the Lyon G. I play old-time string-band stuff, which means literally hours of playing in A, D, and G. So there inevitably a lot of wear at the second position (a on the g string). I play 3-4 hour sessions once or sometimes twice a week. Would doing more maintenance, like sanding, oiling, etc. prolong the string's useful life? Should I rotate it like a mattress (back to front and/or up to down)? Or is a year all I should expect, given my application? I love the sound and feel of the Gamuts, and my '48 Epiphone needs the low tension, so there's really no option. But I sure hope I don't have to cough up $100 for a new G string every year!