On my EnhPro Kayfun Lite which I've drilled the air hole out to 5/16"... vs the Infiniti KFL+ v2 with the AFC open all of the way... the +v2 still has a lot more air flow.
Currently... on the KFL, I've set it up using 28g Kanthal wrapped on a 2mm mandrel at 1.2Ω. The KFL+v2 has everything the same but wrapped up to a 1.5Ω coil ( ie 10 wraps ). I get better flavor on the 1.5Ω coil but I'm uncertain if it is from the air flow or the difference in the
coils... I'm thinking it's the air that is the big difference. Oh... didn't mention it, but I'm using Japanese cotton for the wick in both.
The amount of difference in flavor isn't a lot but it is there. Because of that... and the fact that a lower ohm coil will drain my batteries sooner... my
coils will now be at least 1.5Ω or higher from now on.