I am an MVP owner and use PROTANK 2, MPT2, MTS,T3S SMOK GBC, all single coil and get over 1000 puffs again single coil. If not mistaken the Nautilus is dual coil correct? Also I use 3.7v but mainly use watt mode set to 7. I think the dual coil eats up the juice. From what I have read and been...