I have had my mega atomizers for about a week but was mistakenly sent regular carts with them. I received some mega carts today, broke in the mega atomizer with about 30 or 40 hits, and then I refilled it fully to see what it was capable of doing. I used a piece of blue filter foam as a plug, the same size that I cut them for use with a regular cart. The mega cart will hold about 25 drops of liquid using the blue foam
mod.
I took normal drags, each lasting about 2 or 3 seconds, and counted how many good hits that I got without having to refill it or take it apart to mess with the wick. I got 100 hits off of the full cart, with hits 99 and 100 starting to taste bad. The foam was mostly dry when I checked it after that. The first 30 or so hits were notably wet with lots of liquid bubbling which could possibly be solved with a slightly bigger piece of foam than normal. All of the hits that I got after that were smooth to the end.
If you are looking for a way to pack around 100 solid hits in one unit without having to refill it then I would highly recommend these.
In case anyone is wondering about the lengths, I did some measuring:
Mega Battery / Mega Cart = 5.75 inches
Mega Battery / Regular Cart = 5.375 inches
Regular Battery / Mega Cart = 4.75 inches
Regular Battery / Regular Cart = 4.375 inches