I thought I'd share this with you guys. I've been buying & trying every 510 cartomizer I can get my hands on and have been hugely disappointed. I'm trying to get off dripping because it's starting to bug me and it also looks really weird when you're busting out a bottle of juice in public. I found the 510 cartomizers from liquidXpress and they're amazing!!! I've been heavily vaping one of them for about 4 and a half hours this morning and it's still going. I expect it to die soon but that's quite a long time compared to CE2's and everything else I've tried, plus they don't taste funny at all. The trick with filling them is to take the cap off and slide a syringe down the edge between the wall & the filler and inject the juice from the bottom/middle so that you can get the filler fully saturated top to bottom. No more dripping for me!