i have an mpvv2 and am very pleased with it.I have been building my own coils for my kamary x9 tanks mini pro tank 2s and evods using 0.3mm a1 kanthal 11 wraps 10wrap 8 wraps round a 2mm drill bit they are coming out at between 1.3omh to 1.8omh and produce good vapour and th. My problem is the mpv v2 times out when i take a long pull on it. I am thinking this must be some sort of protection on the device or something as the batt is fully charged it just stops putting power to the atomiser and the button light flashes green indicating that it has stopped powering it.Any thoughts on this or if someone knows why could you lets me know i thought that maybe i am trying to get to much power from the battery.