So I am at my parents house and my father is out of coils for his Pro tank 3. I decided to give rebuilding one a try and it works just as well as the old one did according to him. I did notice however that after he had been some what chain smoking it for about 5-10 minutes or so, the bottom of the tank was pretty hot. It's been about a year since I have personally used a Protank of any kind so I don't really remember if this happens due to over use? Or did I improperly build it? It came in at 1.59 ohms after building and he has it on an older Ego C Twist. Not sure what the mahs are on that though.