I've been using these for about 2 weeks. The only "mod" i do to these is to remove both inner cups, and put a tip from a vortex2 from gotVapes on top. This makes refilling very easy. Give it a tip and Vape away. the top from the Vortex keeps me from slugging any juice and removing the cups solves any wicking problem. I have found that a couple of the juices I use will clog it up after 1 or 2 fills. it seems to be the darker juices that have this problem. I use juice from Mr. E Liquid (33% VG 24mg) and Tasty Vapor (20%VG 24mg). I have used the different ohm ratings without any big difference in performance. Now I just use the regular size for my darker juices because they are a bit cheaper. The other thing I have done is to buy up the older CE2's, which have been deeply discounted and use the new style tube on them.
