I hang 11 guitars. Here's the important stuff:
-DO NOT use the supplied dry wall anchors to secure the hangers. I trust them about as far as I can throw the U.S.S Nimitz. Screw you hangers into the wall studs. You can also cut a board, stain it, screw it into the studs, and then screw the hangers into board. That's what I did:
-Make sure the hangers are nitro safe
-Mount the hangers only on inside walls and out of direct sunlight
-Make sure the room does not get excessively hot, cold, dry, or too humid
Hanging guitars does not damage them a bit if you follow the above advice.
Guitars: 2008 Gibson SG Classic, 2006 Gibson Les Paul Standard LE, 2002 Gibson SG Supreme, 2001 Gibson Les Paul Studio Plus, 1996 Les Paul Studio Gem, American Deluxe Double Fat Strat, Bluesville "Super" Strat Copy, MIK Fender "Limited Edition" Tele, JD Bluesville "Night Pilot", Yamaha AES 820, Steinberger Spirit GT Pro, Taylor 355CE, Ovation 1897 Adamas, Ovation CC057 Celebrity
Amps: Axe FX centered rack rig, Mesa 4x12 cab. Germino Club 40, Johnson JM150 Millennium, Johnson JM250 Millennium, Gibson Titan Medalist Frankenstein.
Effects: Tonebone Trimode, EH Holy Grail, Boss CH-1, Dunlop Crybaby Classic, Framptone Amp Switcher, THD Hot Plate, Yamaha AG Stomp Acoustic Processor, Boss BCB-60 Pedal Board.