O.K., I found one of the manuals! And (drum roll please)
two of the original sales brochures they handed out back in 1996.
As I understood, there were from 5k to 7k of the inversions
built, but less than 1,000 of the PDS forks built. Inversion
was made in Taiwan but the PDS brochure says "made in Oregon"
so it was at least assembled here, if not machined as well. I am
going to try and contact the two Halson Designs, Inc. owners
I know of and their attorney and try to see if we can get boots,
or other spare parts from Steve. Maybe build some new PDS's???
How cool would that be!!!???
The manual is Copyright 1996 Halson Designs, though as far
as I can tell, it no longer exist. It is not for resale, and for
Halson PDS Fork owners specifically, as it was included with
every new PDS sold. The manual has no copyright on it,
anyone can have it as far as I can tell.
Can't edit a PDF or I would have removed the redundant fron cover
of the manual. Too lazy to re-scan it all in after I saw what I had done.
Just a "thank you" and your firstborn is payment enough.