...yes, the capsule both I and Jim Williams were referring to is what microphoneparts.com calls it's "RK7" capsule...
Right, that's what I thought and that's exactly why I didn't/don't understand the "but", as I don't see any opposites:
I prefer this 6-micron mylar version...but I give microphoneparts.com props for making all these affordable capsule options so accessible...
But before I make this more important than it really is, I'll leave it.
The other bits, about the different sources MP gets their capsules from, and the difference with Dave's package, are clear.
And again, thanks for sharing this kind of info in the first place. Much appreciated!
the quality of these inexpensive capsule options continues to improve...
That's the good news, of course, although the prices are rising, too. (Very recently, they crossed the $100.- point.) So for instance this quote:
"RK-12. (not)$139 (but)$109
Introductory sale pricing!"
...is not exactly what it suggests. That is, it was never $139 (hence "introductory" and, yes, it could be $139 soon) but the $109 price used to be lower.
Still, nothing to complain about, although those interested may not want to wait too long.
On the other hand, a sudden run on those would raise the chance there'll be another price increase sooner.