Hey everybody! I was thinking about taking my gibson es135 with p90s in to the local shop to get it checked out and fixed up. It is from 1992 and I got it about a year ago but lately I feel it hasn't been sounding as good as usual and sometime I have to jiggle the selector switch around to get things going. Also I feel like the pots need to be fixed up cause they have been cutting in and out and making noise if I tap them. So I don't know much about this guitar and usually fixed up my own strats and teles so I've never had much experience with taking guitars to shops for fixes and setups. So my question is should I take and in and how much would it cost me. Thank you!