The trems on the regular JS1000's (ones you can pick up at a
music store) have basically changed since 2004 from the Lo-
Pro Edge to the Edge Pro. Some of the main differences are that the Edge Pro has a lower profile and it can accept strings without cutting off the ball ends, and there are no factory installed stud lock inserts. Aside from that, the body has remained basically the same, along with the electronics.
Jimmy
