I had all but given up on cartomizer tanks, though there had been minor improvements over the last year or so but unless using a fairly snug and flared bottom drip tip there was always that fear of the drip tip coming off and the tank sliding up spilling juice everywhere. That was until I was given the opportunity to try the UD carto tank, as seen in this AGR+ article, and I was hooked! I have always preferred Boge cartos over Smoktech and Kanger, so that just made the experience all the better, and it wasn't just the sense of relief that it wouldn't come apart, but the vape itself was also amazing. The AGR+ with a 2.0ohm Boge XL and the longer tube obviously produced fantastic flavor and ridiculous giant plumes of vapor from a nice smooth draw, not too airy nor hard to hit, but just right. I just got a box of SR 35mm Boges and can't wait to partake in another great vaping experience with my AGR+, thanks Youde!