Hi sleepjean. DeXTeR is liable to come over to East Texas and slap me for all this "advice," but you might want to try this if you decide its necessary.
Take out the white mouthpiece part, remove the seal ring and then raise the fill ring just a little bit. Fill the CE2, leave the seal ring out and replace the white mouthpiece. This takes the pressure off the wicks and they wick a lot better.
I tried using a little piece of blue foam instead of the white filler material, but didn't have much luck with it.
I've actually taken the fill ring completely out, use my syringe to fill beside the ceramic cup, put the fill ring back in just a little bit and then put the mouthpiece back in.
I've found that a pick that you use to get the meat out of walnuts is ideal for removing the fill ring. Little bit of work, but its not hard.
Just try this on one to see if you like it. Sometimes I do get a little juice in my mouth if I over fill.
Its hard to tell if you got new cartos, old ones, or what. The manufacturer just sends stuff out and you can't blame the supplier. The clear ones are almost certainly new though and I haven't tried them yet. And it may be that you don't have to do anything to them.
I'll say this, I've heard a lot of people say they don't want to fool with the CE2's - that they want something that is going to work perfectly when they get it. And I can understand that. But f you don't mind doing a wee bit of tinkering, you are not going to beat the flavor, vape and th you get with the CE2's.