So two days ago I got a beautiful Musicman Stingray for $600, when I got it and brought it home I played it and something was funky with the electronics, it would make a ripped distorted sound randomly at times, the guy I bought it from on CL had not told me this. Besides that the bass is great and is fully setup and intonated. My luthier told me I should get some money back from the guy because its a $200 fix. What should I do?