Hi -
Looking for something different, I picked up a G-400 new in the box from an antiques store. Warranty/inspection card pamphlet still on the strings, plastic still on the back of the tuning machines so I am confident it's never been played. First question is should I replace the strings? Guitar had to be tuned up when I got it so they've not been under full tension all these years and it seems to play fine except high E occasionally rings out a bit strange but right now, I'm blaming that on the player. Second question related to that is what was this strung with at the factory? They seem thinner then the Ernie Ball 46/10s I have on my start, so I'm guessing they're 42/09 but wanted to confirm. Last, is there any maintenance things to be concerned about? Fret board seems to be straight under tension, all the tuning machine works and action height seems to be set surprisingly well and it has good intonation according to my tuners and the electronics sound very clean.
So in summary, picked up a 25 year old G-400, what do I need to know?