Oh lawwwd, he coming!
I wasn't prepared for how big this cap turned out to be! It barely fit next to my Calibear cupcake and kept brushing against it so I moved back to the stock glass. I suppose that gives me another chance to buy some ridiculous recycler or something.
As for the cap, it hits extremely well and has a very wide airpath, something like 25mm or so. I don't pull hard on it, I just take big slow hits, but it definitely clears more vapor than I was getting from either the stock joystick or or my $20 spinner cap. It leaves very little residue behind.
Also, I must say that it is absolutely beautiful. This was a great drop from a great glassblower. Keep up these limited edition drops, Dr. Dabber! It's almost silly how superior these are to the stock joystick.