I'm going to jump in and see if this helps. I got an eGo 900mAh kit last week. The atomizer/tank that is supplied gives a good amount of air, and the liquid lasts for a day or so depending on use.
A replacement clearomizer I got is extremely hard to draw on. it seems that not much air is flowing through it. I feel like my cheeks are going to cave in.
The box I got says Crystal Clearomizer. 2.0 Crystal Clearomizer. On the metal itself, the number 2.4 Omega is stamped. On the other side of the box it says 'The resistance of the atomizer is selectable. Not sure what exactly is selectable. The airflow?
Also, along with this drop in draw, it's using up the liquid at least twice as quickly.
I thought about posting this as a new thread, but saw that this might be helpful. Advice??