Oh but please don't Jimmy cause it will give me a huge headache. I think the answer to your question is that nothing sits on the screen since the screen is above the herb at least that is what I observed but I wouldn't trust me. Nigel where are you
. I doubt that this vape is made for fine grind since that is what you are looking for. IIRC and I may not, it was said way back when that fine grind isn't good.
Go and look at the video. The herb goes in the bottom in a glass bowl. Above the bowl is the "removable screen", basically a long piece of glass with holes in it. It goes through the ascent and connects to the other glass piece, the mouth piece. Now again I may have been in lala land and have it all backwards which is always very possible.