I changed to the eGo-CTwist with a tank about a month ago and absolutely love it! One small problem; the carto part of the tank occasionally seem to run dry. I'm sure it's because of sporatic heavy vaping on my part. The question is; can I enlarge the hole in the carto slightly to allow quicker wicking of the juice into the carto or do I run the risk of flooding the carto? Outside of this small and occasional issue, the system rocks!