congrats on moving on =) im doing a lot of the same things you are, just got a twist myself. love it. by the way, dont throw away your blu cartridges, they can be refilled with juice of your choice. nice to have them around as samplers. just get a thick paperclip, straighten out the end, then put a hook on the very tip of it with needlenose pliers. use that hook to pull out the rubber mouthpiece of the blu carto. theres a 2nd rubber stopper in there, pull that out too. now you should see the filler inside- drip your juice onto the filler till it looks saturated. replace the 2 rubber bits. viola. =D good luck on your journey.