I'm going to store some guitars for several years. Normally I keep them in a upstairs closet, in their cases, but will play all of them at some point. I won't be playing these at all for at least 5-6 years. Obviously I haven't had any troubles thus far, many of them are decades old, but as I said, I play all of them at some point or another, change strings, regular maintenance, etc. So, my questions: Is it best to keep them in their cases, or on hangers? If cases... All are strung with 10s or 11s. Should I leave them tuned to pitch, a little loose, or should I restring with 9s? I assume truss rods should be as they are normally, right? Thanks for the help!