Yeah, I've definitely noticed this—I'm glad it's not just me! I just got into concentrates after taking a break from Cannabis for about 4 years (used to be an "err' day/all day" flower smoker) and so the Crystal is my first, ever coil-less vape pen; I have nothing to compare it to. But, I did notice the material run up the sides and pool around the outside edges. What is the downside to this (coming from a concentrate n00b)? Does it cause you to get a less even hit next time or for the material to somehow not vaporize evenly and have hot spots? o.0