I had a clearomizer that I absolutely fell in love with! I was rockin' it with my favorite juice mixture. After a week or so, I had just filled it up, laid it down on my desk for an hour or so, came back to find that it had cracked open and my juice was ALL over the place! What a mess! I have since bought a different type, but I am afraid to fill it because I have been reading about all the different juices that will crack them... So far, the best thing I have tried is the atomized cartridges that they gave me with my new kit. They are just a piece of softer plastic that fits on top of the atomizer! Great hits every time. The only thing is that I wish it held a bit more juice as I have to keep refilling it! Just got in some Boge carts today and filled one of them. So far, I am not liking them very much. I can taste the filler material, yuck... I'll give it a while to see what happens as they are cheap and I know they won't crack on me....