IDK, it doesnt seem like theres any convection at all. The outside air that comes into the tip is at ambient temp and doesnt get hot enough fast enough to cook the herb. The only thing cooking the herb is the hot surface of the chamber, which is totally different than convection technology which heats only the air so that the air can cook the material.
Actually ,it has to be some convection going on.
I use only carbless VapCaps.
Thus only mouth pulls are involved .
If short bursts of high negative pressure are applied ,the the air has high velocity entering the chamber.
If prolonged ,smooth drawing is applied then the air has lower velocity.
Air velocity impacts the temperature of incoming air.
Even for that short path of the VapCap tip triple start threads .
At first case vapor production is ok and at nice temp.
At second case vapor production is massive ,but rather hot .
Assuming that ,at both cases ,the tips ( chambers ) were heated in the same spinning manner ,with the same heat source for the same time and until reaching the same temperature ,then it has to be convection that makes this-rather big -difference .
Verified 100% .
No vape is actually 100% convective or 100% conductive or 100% radiative .
All vapes feature various levels of these three types of heat transfer .
cheers.