I've been messing around with the 3mm rubies again. I've been doing a variation of Table Top Bong reviews preheat method
I set the wand to auto mode, temperature 325c / 620f. Drop the Tempest in and count 10 seconds / wand blinks, then take it back out. Start the timer over but this time wait till the time out message
I was using this on a bong, drawing slowly. The vapour started getting really dense after a few seconds, and kept on coming! I had to stop halfway through to exhale a lungful!
I think pulling on the bong slowly helps keep the top of the bowl from getting scorched. It was a little darker on top but the colour of the AVB was pretty consistent all the way through the bowl. I did do another cycle (respecting the click) but it was pretty much fully extracted
So yeah..... If you have rubies try it out!
This was the AVB after 1 cycle