By the way, for all things Bronica, check out Bob Monaghan's website:

http://medfmt.8k.com/bronica.html

And the two Bronica discussion groups on Yahoo!Groups:

http://groups.yahoo.com/group/Bronica/?yguid=41266402

http://groups.yahoo.com/group/BronicaPro/

The first group tends toward the earlier models (Z through EC-TL) and the second group toward the later models (ETR, ETRS, SQa, SQb, GS-1, etc.).