So, a couple of weeks ago i bought an RN4072 off of ebay. It was one of those deals that came with 50 carts. Well shortly after I got it, my atomizer died. It did have a warranty with the buyer, and he quickly replaced it for me. However, after this experience, I got smart and bought a DSE901b from LITECIGUSA. Recieved it and now I don't even touch my RN4072. Which left me with 50 unused supermini carts. Well, believe it or not, with a pair of tweezers, the "sponge" that holds the liquid comes out quite easily, and fit (not perfectly) okay into an empty DSE901b cartridge. Just thought I'd let all the newbies know (since I am one too), that those RN4072 carts have more use than you think. Once in the DSE901b, the supermini carts smoke quite well, and last for a considerable amount of time, I am overall quite impressed.
MoonRequiem
MoonRequiem