I forgot to mention for anyones interst. That cherry green cig cart i had and didnt like. what i did was take it apart and put some bananna and coffee mixed together in there. Now that was excellent flavor. Also on that cherry cart when i took the mouthpiece off there was no white glue or whatever that stuff was sealing the cart. so the flavor cart came out pretty easy. on the other older carts i had with green cig when you took the mouthpiece off there was a white whatever there sealing the cart. so you had to clean that and scrap that off in order to pull out the cart. this didnt happen on that cherry cart. so this was the first GC cart that i actually took apart and had no leaks whatsoever. in the past whenever i took apart a greencig cart and refilled it it always leaked or didnt work right. not this time. this time like it came from the factory with bananna coffee. excellent. But i was taught my needvapor and snarkyone that you shouldnt take the GC carts apart. just fill thru the battery end. anyway just trying to help others that want info on refilling these. Not saying its easy and not saying it cant be done. i guess it can you just need patience. as we all know there is nothing like getting a brand new untouched cartomiser and putting it on the battery. Hope this helps.