A friend of mine, Alex, just got a good deal on a used Jackon Guitar. Neither of knew which model and could be bothered to Google it;-) It just needed a trussrod adjustment and a little oil to free up the tight trussrod nut. It's probably never been adjusted from new and looked virtually unplayed. Putting 10's on it made the neck relief somewhere around 15 thou. Way too much. I set it at 10 thou and everything was fine again. Plays great. Nice guitar.