Help!! I am having a problem with my pro tank 2's after rebuilding them. I am rebuilding them correctly and they register the correct ohm's when I test them on my Provari. However, when I reassemble everything and put it back on the Provari I get no draw on it! This is driving me crazy! I have no idea what could be causing this. The device is on, the reassemble on the tank is correct. I screw it down finger tight, not too tight. I've checked and double checked and still it's like sucking an orange through a straw....nothing! Any ideas?? This happens on all of my pro tanks but not the Evod's. I really don't want to have to order stock heads when I'm perfectly able to build a decent head. arghhh....frustrated in NJ!!