I wasn't very clear in what I wrote, my apologies. I didn't mean to use it on my current setup, I meant where do I get the CRC tank without buying the Marvos X as well as the X just for the tank?
It might piss me off, I am not sure. I just would like something that for example if I select a power that requires 3.7V it provides that voltage without dropping off, for this it would need some type of boost circuit. Most of my single 18650 mods have this so I was surprised the drag X doesn't, and the power hitting the coil drops off with the battery instead of being boosted.