With a vortex, I find it's preferable to use a whole bunch of pin-sized holes around the very edge of the bowl. Usually, two rings are enough. This, way more air is forced to travel through and over the surface of the tobacco, which means more smoke and less wasted, uncooked shisha. That's just the theory, anyway.
Originally Posted by Nyxxie
How about a phunnel. Do you punch holes in the spire? or do you leave that aprt with no holeslike you would for a vortex?
Same as the vortex.