I don't own a bubbler, but I am looking… I'm looking for a small tabletop piece that I can use with my Extreme and has a removable mouthpiece. This has me looking at the VB Clear Precision. My questions are: 1. What does it matter (other than aesthetics) how many holes are on the downstem or where exactly they are located as long as they are near the bottom where the water is? 2. If the bubbler has an 18 or 19mm joint on the downstem, what other glass pieces would I need to adapt that to an HI vape? I'm thinking specifically of a video I saw from Iloveboobs where he's using a small glass tube with a built-in screen then putting the HI over it. To put it another way, a small bowl with a male glass joint that will get the job done. Thanks in advance!