I scored a late 90s Yamaha SG700S for a steal to use as a backup hardtail. I think it looks great and it plays like a dream. Raucous pickups with quite a thick tone when playing solos, usable coil taps although not fendery spanky sparkle of course, no hum or crackling, good weight, medium neck, plenty of life left in the frets and seems to be very stable with tuning. I'm pretty impressed with it so far. As for being a backup guitar, I might have to take it out for a spin one gig to see how it holds up.
Lol, I made a thing...tongue in cheek...;)