So i just got my first reo woodvil today.. it works with a cartomizer... but when I put my rm2 on with a 2.1ohm coil it doesnt fire... i get a solid resistance from post to post so it obviously has continuity... but when i fire it i dont get a voltage from post to post... i measured the voltage without anything on it and it reads a voltage from centre post to outer post. but as soon as the rm2 goes on nothing happens... its like the threading isnt long enough to reach. ive tried screwing it on as tight as i could too and still nothing.. im really disapointed and frustrated at this point.. can someone help?