I just put a new cartomizer in one of my tanks, and I can't get it to stay wet. If I over-prime, I'm gurgly but good, but after I hit it a few times, it starts to taste dry & burnt. I'm on my 3rd box of cartomizers, and I know the occasional bad one is inevitable, but I'm not sure if it's a bad carto or tank seal failure. All my other tanks are full, so short of wasting juice, is there any "easy" way to tell which part is causing the problem?