We often discuss the difference between a type 1 blank and a type 2 planchet as "having been through the upsetting mill" which creates the proto-rim. This was posted today, it's a pretty clear image of how the fool thing works... https://www.instagram.com/reel/CsiElzruvcz/
Dang, you went there. I had just PMed @paddyman98 saying that I had standards (low, but standards) and I wasn't going to go there in public.
