I just posted a thread this moring about my new e-cig. I really do like it but i'm not sure they flavor i got pre-filled in my carts (RY4) is for me. I was wondering if there was a way I could safely get the juice out of it so I can try some of the other juice I got. I heard of boiling them but i'm not sure if that will harm my cartomizer or not. Any help is greatly appreciated. 