I have run in to some bad coils that had come on the original t3. I was new and thought it was me. A couple leaked like mad, a couple burned out quick despite soaking in vodka overnight and drying them. Them I bought the blister pks of the t3s coils. Not one single problem with any of them. I also have the Sigelei VMax 3(I started with reg ego's and and spinner. oddly some of the reg ego's ran at a higher voltage and burned much of my juice. I started rebuilding coils on my old t3 heads and that works well..but I am no expert. Now for me I have not been able to run my Zmax over 5 watts..I am using 1.8 ohm coils. Now depending on what flavor juice I may have to change my volts and or wattage, For me I can running higher wattage on dark juices. Lighter ones tend to burn. I have a puritank which absolutely rocks..I don't have a protank 2 but I do have the mini puritank 2's and enjoy them. Don't give up
