Got a new one coming out. My first unit to use the 510 atty system (actually it is a m7x.5 metric thread). It is tiny, 1.5" long x 1" diameter. 14 mm stem, using our standard stem design, perfect for micro dosing 50 - 125 mg. The female joint is made of maple similar to the Essence. Here is the unusual part, the coil deck is made of maple! There are brass connectors attached to the wood (I am looking at plating those with silver). Making the deck frees me from China but means I have to make some tiny brass pieces. Performance has been great, I've been using mine as my daily driver. The stem in this pic is our new cooling stem. Currently I'm not using a screen and it has been fine. A screen can be added. This is where it gets interesting, I made the deck out of maple and fitted it with brass connectors that go to the 510 system. And here is the fancy stem, a short stem with cooling beads and a fancy bocote cover. There will be a few betas in the web store today at $65 then I expect to start selling them at around $85.