Cool, I may have to pick one of those up, if I can get my Revolution working again. But then again it will work on a vmod.In my quest for finding some RDAs that will work on a BF without modification, I came across the RUK23. It works on the Revolution and on the Vmod with a 510 extension. Interesting with a ceramic cup.
https://www.fasttech.com/products/1412706
Still trying to get something to replace the tube I lost, dang it!