I just recieved my first IBTanked tank. The craftsmanship is second to none on this tank. It delivers great clean taste,but is a little lacking in vapor? I'm using the single hole 2 ohm carto,that IBT has on their site. Should I punch a extra hole in the carto? I'm running it at 10 watts on my VTR. With a 50/50 mix on the juice. Any help would be greatly appreciated.