Does it adjust heat during the draw to make up for different draw speeds? In other words, would a strong hit work just as well as a weak hit or is there a sweet spot on the draw?
As I understand it (@scott_dunlap can check me on this) it does adjust during the draw. I have been meaning to mention that I've tried various draw speeds and haven't noticed any difference, so I'd say there's no "sweet spot" needed. Of course, you can only pull so hard on it because it's not completely free-flow. I have noticed that if you're using the highest temperature and you pull really hard, you'll drop it into purple (heating mode).
Something else I should mention: I said earlier that I can handle the oven lid immediately after turning it off. That's true, but if you've been using it for several minutes at four petals (something I wouldn't normally do) then it does get hot enough to make me drop it after a second or so. It won't burn you but it that much heating does make it a bit uncomfortable to hold.