Bought a Red Rdagon (branded E9) and have been vaping for 3 weeks now.
Lurked around the forum to read about which e-cig to buy first and liked the idea of the E9 cart/atomizer being one unit with the good success of being able to drip them too.
Bought me some JC Tennessee cured 24mg juice, and I am in vaping heaven.
I have figured out how to drip these carts without ruining them, and 3 can last in rotation for 10 days no problem. Simple...
First you must realize when you cart is done, before it is fried. This is much eaiser when you use a flavored juice. Stop when the flavor changes!!! Top it off with 4 - 6 drops from you dripper through the threaded end, and put it aside in rotation. Don't try popping off the rubber tip on the other end to drip on the cart material, you will prolly ruin it by over soaking the cart or clogging the wire insulator.
Put 3 in rotation like this and you can vape on my friends. It works well for me this way. Try it you will like it.