I know it sounds like a downside but the thing with the Pax is it's not really convection. It's a new kind of vaporizer, a super-effecient but purely conduction vaporizer. Excess airflow is just not needed.
You can just pack it and pack it and it will reward you with thick voluptuous vapor and fantastic initial taste. You draw slow on the Pax because that's what gives you more intense flavor and thicker vapor.
It actually holds much more than I had first estimated, but this is pretty much the max (the heater door bulges out a millimeter or so)
(Also a little free advertising for a good doc'
)
(Use your grinder tool to make it nice and pretty
)
Draw is still just fine, it draws like a perfectly rolled joint or blunt. Too much flow means your lungs get too much hot dry air imo...