I thought my subtank mini was a thirsty little devil but, after reading this thread I feel lucky I wonder how it will react to a TC mod ? I have an order in for a cloud 571 rda to cut back on juice consumption when chilling on the couch. Seems like in the long run it will be a cost effective investment and it is a dragster looking unit. I am a little apprehensive about the fan gizmo but, I'll see how it flows ........................................G