Wow! These Vortex cartos are great!! Got my shipment out of the mailbox about an hour ago and practically ran to the house to fill one and fire it up Short summary: screwed on the adapter, pulled off the soft mouthpiece, filled the chamber with Mountain Rift, put a drip tip on the tube, screwed the Vortex on my Ego, took a long vape, and am in vaping heaven I've been back-to-back vaping for about half an hour now and every drag is as good as the one before. So far, no dry spots, no leaks, no cracks - nothing to interfere with the nice, warm, flavorful vape. To paraphrase what's-his-name, "WINNER!!"