You can use the CE2's as they are. It's been my experience that they wick a little better in a tank. My only complaint about them is you sometimes have to tip them to get juice to the coil.
I'm not knocking the other tanks in any way. They all that have a slight learning curve and people have had the same problems with ALL of the various tanks available. Leaking, not wicking well and coming apart are complaints I've seen about ALL of them at one point or another.
Trying them will be only way to decide which tank, if any, will work best for you.