Re: really old duncan distortion
So many untruths are being put forward here....
The Customshop does use the Leesona, but not for EVERYTHING because that would be extremely, extremely unpractical.
For MJ to wind the DD, she'd be doing nothing but the DD or at least, she'd have to spend a lot of her time doing nothing but the DD. If you look through the factory tours of Seymour Duncan's, you'll see a lot of automated winders. Those are being used for winding pickups. An engineer puts on the bobbin, lays down the first thread or so and the machine will do it all, just to keep the pickups as close to each other spec wise as possible.
The Leesona is indeed the original winding machine for the PAF in 'the old days' (and others, too) and now SD uses that machine for their PAF style pickups (59, seth, pearly, alnico2pro and I also believe the Jazz is wound on that machine as well).
The wires aren't guided by hand on the regular production line pickups. At least, not anymore.