For me, no carb = no flavour
So I recommend the pinch n roll technique
I put the cap on with the digger outer pointing to the carb, to help locate the hole
and pinch the stem in the carb (airport) region so you can rotate the stem to regulate the airflow as you draw
As shown here
George always harps on this. I must admit I have gotten into the habit of feathering the airports on most of my Dynavaps. I recently got the M7XL and got a Halo tip. Figured out how to adjust the condenser depth and choked it down quite a bit based on video from Lee at TTB. I do not touch the airport and get great results. On the other hand Austyn recommends feathering his new vape as that was how it was designed.