I have asked the customer and he says he has a Sisu 1A. *Any help finding a
good polar would be greatly appreciated.

Just dug through my bag of goodies and found the MSU Sisu 1A
(measured!) polar I was talking about. I have scanned it and PM'd you
a copy. I have a lot lot lot of information your customer will be
interested in and you should pass my email to him/her. I still own
101, it's just banged up pretty good. I believe I have the largest
private accumulation of ephemera on the subject, down to copies of Len
Niemi's security clearance background check paperwork! I visited with
Len's daughter for a day a few years back, and we spent the whole time
digging through boxes of paperwork, pictures, family albums. Oh the
things I saw! Luckily she let me make copies of some of the stuff,
as its real gold to me... like a complete copy of his notes from his
slide presentation on the Sisu he did in 1985 at the SSA convention as
the keynote speaker, and the letter Bruce Carmicheal sent him inviting
him to do so!

-Paul