If I vaporize hash in the vapman, then only with 2 screens ("sandwich method"). there is a little more metal in the pan,
so it takes a few seconds longer to get up to temperature.
(this is a big load, so i heat up and draw 5-6 times. )
Softer hash needs level 5, very hard hash the highest level 6 (if the new station will still have the same scaling).
But it's true, we don't leave the vapman on the station for too long. As soon as the light is on green, we draw.
The first hits always have more aroma, as you mentioned, but with the latter draws come all the
cannabinoids with higher vaporization temperature.
For this reason i recommend to draw one or two more times to be able to absorb as many
active ingredients as possible, even if we can't taste anything in the vapor.