No I used a leatherman but I would guess I opened it up to 3mm +/- or probably 7/64ths s.a.e.
That's a good idea. I don't think of this because I use this for herb blending high temp herbs in oil/herb can in bottom chamber lower temp herbs very loosely packed maybe 1/4 full in top chamber.
I love this feature
Question: @ Da Vinci.... What are your thoughts on using these in the Da Vinci? http://www.shiazo.us/shop/steam-stones/green-apple/
First of all their description made me bust out laughing "Green Apple’s flavor is enjoyably juicy, wet, and sour", but yeah I don't see why you couldn't use these. The stones don't look to large, nor would they constrict the airflow. I see a test coming on this week...