Drop your temp on the kettle to 500. Flipping it upside down makes it the heaviest diffuser on the market, unfortunately it doesn't have the air break that it has right side up. All that heat splashes the weed fast. Try that and lemme know how it goes.:tup:
That is just his personal preference. I myself like a hotter head and less hotter path. Usually, 625 for the head and 500 for a nice mocha brown extraction. Can go up to 635 for a dark roast but I still leave the path on 500. I think the dual pid has similar temps to the auber but not...