mitchgo61
I go where the thrills are
.... at this point I have found the FF wiil combust if I hold the button down, release and then hold it down again too soon. Not a major combustion of the whole bowl, but small pieces will ignite. I can't really taste the burnt flavor much, but the evidence is in the remains. I can also detect small burnt spots under the screen. This has happened 3 or 4 times out of a dozen sessions or so.
Yep. This is why the manufacture cautions against doing this. Releasing and re-pressing mid-hit causes the heat cycle to re-start. The FF throws the most heat during the first few seconds of a heat button press. This can cause material to cook more quickly, and hotter, than intended. If you want a hotter hit, just hold longer. Once you release mid-hit, don't even THINK about pressing the button again. Finish the draw, wait fifteen seconds, and take another hit.
With practice you can cook out all but the last hit or so in the FF. I get very very dark material that is 98% spent. And when used correctly, no matter how long I hold down the heat button, I haven't achieved combustion. There is a subtle, intuitive learning curve you have to climb. Takes a few days...but once you are at the top of the curve, it's like standing on the summit of Vape Everest.