My kill-a-watt died a long time ago, but I originally marked my sweet spot with a marker when I got it almost four years ago, and I still have it at the same spot to get that dark ABV I want - basically right on the cusp of combustion. So that would tell me that my sweet spot is still about 32/33 watts and that I could still max out at 45 ish if I wanted to. Though I've never done a dab so I think I'm happy staying where I am. I do recall reading someone saying that if you do happen to use it for dabs, there's a chance that will impact the ability of your Apollo maintaining temperatures in the long run. Sub 1.0 FTW.