I learned awhile ago that knocking abv out of the bowl was the way of keeping vape screens clog free. With regular ashtrays it's a pita knocking on the side. Enter espresso knock boxes.
This thing has been so much better than ashtrays. The bar itself is slightly rubbery so it a satisfying...
Sorry for the wordy quote, but this comment by Mr. Vestratto here has stuck with me. Is there value in creating low pressure? I've been doing it with my ball vape, using a flat stone pipe to block the top air inlets and rocking it like an airport on a Dynavap. I honestly think there is value...