I've only been playing for about 3 years so I don't really have experience in the hardware department. Anyways, I own an Ibanez SR400, and the bass/treble equalizer is VERY loose, and it seems like the smaller knob on top is starting to fuse with the bottom one, cause them to stick. Also when I turn it it turns the entire pot. Should I get this fixed at a local shop, or can I do it myself?????