Just wondered if anyone has any experience/commentary about SCA chucks, which are made in Sweden. I'm scouting around for a good-quality new 3-jaw, and see a few of these offered on eBay as NOS, from the description. They seem comparable price-wise to a Bison, which was my primary target. Mulling over 6" or 8" choice, Leaning toward 6" to replace my well-used Pratt-Burnerd.