My
I use my green station mosty with either a OG Pear Basic (with Mica) or an OG Pear Pure (without Mica). And it is quite a difference: The AVB gets too dark for my taste at level 5 with the Pure but at level 7 with the Basic (which seems counter intuitive to me). I can't tell you why, yet, at least not the whole story. For sure one part of the explanation has to do with heat distribution and heat losses. But one thing which is easily overlooked in my opinion are differences in draw resistance. The airflow of my Basic is more open than the Pure, therefore the velocity of the air flowing through the herbs is faster in comparison, which means (according to how I understand physics) the air temperature gets lower (which has to do with air pressure along the herbs, I guess). Does this make sense?