First, some clarification (at least for me) is needed, as far as the Dale Ulan capsule version of an M7-style capsule goes. I read on a DIY forum this statement by a "Chuck D":
"Dale" M7 Capsule
After a year of R&D and mentoring from Dale Ulan I am happy to announce that I have the "Dale" M7 made entirely here in the USA. No China parts used. Machined here in Orange County CA, Sputtered in San Francisco CA and glued and tension-ed by me here in my garage.
The design went through a very lengthy process of R&D to get all the measurements exactly how Dale had them. Dale helped me greatly with the each step making sure every single detail was correct.
Is it that capsule you are referring to? If so, who is the seller? And what material is the plastic? Mylar or PVC? (most likely, the former)?