@mitchgo61 (& anyone else that has 2 Fireflies)
Do both your units experience identical behavior?
I am thinking a v2's major improvement would be consistency, as there appears to be some variation in how dark/light different units vape bud.
My red seems to run a tiny tiny bit cooler than my silver....it's barely noticeable most of the time, but occasionally I feel like I get a darker extraction from the silver. It's not super consistent, but if I had to pick one that I think works a little more efficiently, it's the silver. I totally agree that temp profile variances from unit to unit is one of the things that I'd like to see resolved in a 2.0 FF...clearly the tolerances for coil placement are razor-thin. Possibly some kind of better QC would work, but they also seem to be getting more consistent as they ship more units.
On the subject of extraction...I discovered a little trick that works for me a few days ago. As I've mentioned I get better results when I pack the bowl pretty densely. Recently I had two spent bowls that were not extracting any further, and instead of putting the ABV in my VTE at a high temp, I decided to combine the two spent loads into one really dense, packed bowl (just to see if the extra mass resulted in further extraction.) I put a top screen on, which I always do these days in the late stages to raise some heat. My hunch was correct: I got like another half dozen really large hits, from material that, when separated into two bowls, were yielding no vapor at all. When I was done the newly-depleted double ABV bowl was dark dark brown, almost black. Much darker than I normally get, and equal to 215 C in my VTE. (In fact I then popped some into the V Tower, and couldn't pull any more vapor).
My conclusion is by a combo of packing the bowl super-densely with two "spent" loads, and using the top screen, I am finally able to fully extract everything from the material in the FF. I don't really know why "more" always equals "better" for me with FF performance, but it's consistent. (Hey, full circle...)