Picked up an eGo-C twist standard 510 thread pen for vaping a few months back. Was getting dank tanks from my buddy which you can just screw on and they're prepacked with hash oil but he's out of town. I've also got an addon for wax that allows me to vape that as well but my wax guy is dry so i'm stuck with regular herb. Pretty new to this area of toking so wondering what kind of 510 thread addons there are for vaping herb.