I have an Ibanez Artcore semi-hollow (see sig) that I got about a year ago, but didn't play it often until recently. Because of that (and my old inability to do any guitar maintenance ) I haven't changed my strings on there since then, but now they sound like **** and I really need to. My question is what string gauge did it probably come with/set up for? I play .11's on my Mustang, but I just wanna replace whatever's on my Artcore (read: I'm too cheap to get it set up for something heavier ).
El Gearo:

Fender '69 Reissue Mustang
Fender American Standard P-Bass

Fender Blues Junior