I wrote this review outside of this forum, I hope it answers some of your questions and concerns.
This is a first impression, I received these today in the mail, and haven't used them for 24 hours yet. I'm fairly sure these are e2 v2 of these cartomizers, as that is what is stated on the info card included. They do have the ceramic atomizer. I did not use any mods that I have read about, and viewed on u-tube, I used them stock as they came.
These have a new learning curve that wasn't quite as user friendly as most cartomizers that I've used. That only require removing the mouth piece and filling, however you wish to do it.
Remove the mouth piece, and the second ring/seal, the third is the final seal is supposed to be left in and it has 2 holes by which it is filled. Place the provided soft tip needle in either of these holes and fill. The overflow will come out at the atomizer in the center and/or the second hole. Replace the removed parts and it is done. After I figured it out the first time, it was much easier after. Good lighting is a must as the 2 holes are small.
I received 2 of each XL/standard short.
Long XL 510 e2 v2, Tested with a Buzz at 3.7v up to 4.5v with 90/10
Just shy of 2 ml capacity. The long is the better of the two for the obvious reasons, more is better. But also it wicks faster, tastes true never burnt. Although it does have a slight dry taste, but I think that is due to an easier draw. The draw is pretty easy, maybe a touch to easy. Good juice longevity, nice construction. Tastes as good as dripping, maybe better due to consistency.
Standard Short 510 e2 v2, Tested with a Buzz at 3.7v with 80/20
Just shy of a 1ml, 2/3 the length of the XL, very close the the length of a 510 atty and drip tip, just a little shorter. Vapes very nice but seems to wick a little slow, can get a burnt hot taste if vaped heavily. I tried tipping it up side down to try and help it, with out modding it seems to run short of juice. The draw is quite a bit harder than the XL, it seems a bit stiff. Every bit as good as dripping, more consistent when its wicking well. A little hard to tell if its dry or not wet, a little annoying in that regard. The juice lasted about 4 hours.
FYI: Drip tip fits, and it can be dripped.
I will be looking for more of these, they are good. Apparently there is a v4 coming very soon and if it is better than these for wicking and rate of draw, the only real complaints that I have, these are going to be a treat to use.
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