In reply to gethin_allen:
Yes, that’s the one. It has smooth cam lobes which someone comments on in your link. It’s been a really useful little cam.
I really have no idea where I got it from now. Often various people like Andy Pollitt would sell stuff they picked up cheap on trips, but that was usually eastern European. I’m pretty sure I never saw one somewhere like REI or smaller stores when I was on trips in the States.