My Prime X came through and loving it so far. Got the special kit for the great price, so thought I’d buy another then I can use one with the RDTA and the other for MTL for out and about. If I had one wish it would be that they would take 21700’s but I guess that would increase the size. It’s not a major problem as I’ll just have to buy a couple more 18650’s. Not tried the RBA’s as yet, but more than happy with the 1.0ohm BP coil for MTL. RDTA is good too, although can be a bit tricky to build as the coil needs to be raised quite far up. Also fitting the top back on is a bit fiddly to get in the correct position compared to other RDA’s I’ve used. Put a .30ohm fused Clapton and it’s performing really good. Definitely comparable to the single coil RDA’s I use and not that far away from my Asgard Mini!