i just found one and rebuilt it... very nice finish on the first... cool shape and profile! will have to dive it in the pool and see how it breaths...
--c
p.s. its for sale if anyone wants it!
Once you try it out, let's see if it is still for sale. This is one of, if not, the best single hose regulators ever brought to market. I still regularly dive mine, and wouldn't part with them for a new regulator for open water diving to recreational depths (well within both the MR-12's and my operational range).
Try it, You'll like it, guaranteed.