I recieved a PT3 last Thursday as a tester from my local B&M. Burnt the first atty in 4 hours on my Sprite Mech. Naturally, I stripped it down and both coils are N/R/N wire. I wrapped a pair of 1/16 coils in 32 Kanthal, 9 wraps each for finished product of 1.2 ohms. 3 strands of Peaches and Cream yarn through each coil, 2 strands for flavor wick on top. This atty is now on its 5th tank of 50/50 liquid almost a week later, using as a lung hitter on the Sprite. Its keeping up perfectly fine, no gurgles, no burn, and good flavor/vapor production all the way to near empty. It took about 15 minutes or so to do the full rebuild.