A couple years ago I bought a used Musicman Stingray from Guitar Center. I really loved everything about it with the exception of the setup. I took it to my guy and he set it up for me while I waited. He said the neck had a bit of relief in it. We sat and talked for awhile after he was done. I take the bass home and go out of town for a week. I come home and the neck is back to the way it was before the setup. Now my guy has been setting my stuff up for years and knows what he's doing. I took it back again and he tells me that the neck is twisted! I left it with him to see if he could get it right and he was not able to get it done. Needless to say I took it back to guitar center and got my money back. Are the necks on musicman basses temperamental or did I just get a bad one?