Hey, a guy brought in a Grover-Jackson RR flying V guitar in to day for me to do some electrical work on and a setup. he said he picked it up for a few hundred at a pawn shop a few years ago. whats the deal with these guitars? why is it grover-jackson, how long did they make them like that? I know grover and jackson were affiliates of some sort. it says Grover-Jackson M.F. Series. im thinking probably japan or korean made? any ideas?