Recieved J-hook mouthpiece today, purchased from seller off of ioffer.com only $35. I wasn't expecting such thick glass, he mentioned it was part of their newest batch that they made 9mm. I like it a lot and is perfect amount of diffusion for vaping. I'm looking to possibly get an inline ash-catcher to swap around with. Anyone with a similar set-up post some pics up! Dont be afraid to litter my thread. Pics: