Not tying to highjack but the early San Dimas Jacksons (basically SD Charvel parts) are still a good buy. Same killer necks.
True, they are the same as later production Charvels. Not the same as anything made before 1982. The preproduction era Charvels are quite different all around. Different neck shapes, different standard body woods, different fretboard radius, different finish material..the list goes on and on. Bolt on Jackson's of the 80's were merely a continuation of where Charvel ended up, after the Charvel brand became an import line. The only difference between a later USA Charvel from the 80's and an early Jackson, is the neckplate and logo.