i got a VT75 nano the end of last month and it seems to be having issues with the resistance no matter what i do. i use 5 different tanks(2 kanger subtanks and 3 kanger top tanks) and all suffer from the wrong resistance on the 75. they all read correctly and fire correctly on my DNA200. i have messed around in escribe, changing the mods internal resistance and that just seems to make it worse so as it sits the internal resistance is set to 0. i have cleaned the battery cap threads, the 510 threads, the pos pin, and even the 510 disk with no change. so, anyone have any idea on what the issue could be? something internal that needs to be sent back for replacement? OH, forgot to add, the attys all show between .29 and .31 on the DNA200. on the 75 they jump from .27 cold to .37 warm. they can be showing the correct resistance as they should but then not fire correctly. remove the tank, press the fire button, screw the tank back in and then it will show a higher resistance and then will fire correctly even if its as high as .37 on a cold .29 coil.