Full open.
I use to prefer the closed airflow with a lot of vapes, but with the tempest I feel that the air is not well distributed through the balls if it is very closed
@Berimbolero Any plans to sell it to stores? Did you try traditional hash on it? Would it be compatible with the revolve? How much is the shipping? (Since after the paypal button it told me is 310$ or so)
Looks awesome
The balls cool better, and, if you use 3mm balls instead 6mm...the difference is huuuge. But if you want to keep it simple you can use any 12mm OD glass stem with peaks. Even you can use a revolve+glass sleeve.
The point about the new mouthpiece is simple: use whatever you want. Yllvape...