Don't nobody hold me to this; but here's what I'm thinking right now. Atties would be ordered with a post or a short post (as originally pictured), and then I would fabricate replacement posts for those few who want to try a no-capture, open, flush, center "not-post". I could replace before shipping, or send it along. BTW, I've been vaping nothing but the Nuppin' all day today on our little day trip to a memorial service. Obviously, the coil didn't budge and it fired consistently and reliably the whole time. I can't speak to what would happen if a coil were left in there for a number of weeks, as I'm about 24 hrs into this whole thing. I would have to think, tho, that those who would want to play with an experimental (the no post version) atty configuration would be wanting to swap coils rather frequently (to try new ideas). When things settled down for said experimental type, they could always swap back to the original short post with capture.
After my brief discuss with 4nic8 yesterday eve., I got into the spirit to be a little less experimental, and focus more on vape quality. I've been splitting the time today between ~1.4mm single air hole and wide open dual air lung hits. Both are very satisfying with a ~.6-.7Ω Mundy Coil. This eve, I got down to business and built the true Mundy that I'm accustomed to (3/4 wrap, ~.5Ω, KGD). I set the air hole to mimic my RM2 set up (~1.4mm single). I put the RM2 on the REO (fuse and pin modded), gave it a few vapes with a citrusey juice @ ~33mg; then pulled that exact juice bottle and battery and popped them into the OliveRdibi & Nuppin'. Here's what I found.
Throat hit was =
Sharp acidic flavors were slightly stronger in the RM2
Middle flavors were stronger in the Nuppin', with a fullness and roundness of flavor that wasn't present in my RM2 setup.
Vapor production . .. . . I'll let you know as soon as I can open the RM2 to wide open duals @ ~ 1.5 x 3 mm slots . .. . . then I'll be able to compare. (at comparable settings, it's about the same)
The vape can be warm, even hot in the Nuppin'. Not the atty getting hot, that hasn't happened to me at all. The vapor can come into your mouth hotter than with the RM2. On these occasions, I pull the cap up ~1.5mm (where, I've mentioned, it stays indefinitely) and this increases the chamber volume just enough to get the mellower, cooler vape I might want at the moment. I would only do this when I didn't want to adjust the air hole size, for whatever reason. As I play with it more and more, I'm finding that the ability to adjust the vape on the fly is a real pleasure. And, where I realize I had one go-to setup on the RM2, I'm finding that I have at least three air/cap configurations that hit sweet but have very different qualities on the Nuppin'.
The only reason I compare to the RM2, is because that's what I know, and that's what I know because that's what I've most enjoyed til now.