This is probably the 15th cook I've done, and for the very first time, I overshot during startup. I used the electric starter for 13 - 15 minutes, shut the dome, and lo and behold, the egg shot up to 400 degrees. (looking for 200-225 for baby backs).
I left the vent and the daisy barely cracked and it was coming down very slowly. About 45 minutes went by, and I burped the egg and *thought* the fire went out. Nothing glowing. So I put in a single square starter, lit it, closed it and it was at 150. I had opened the vent and the daisy *just* a little bit. Suddenly, it shot up to 270 again, where it's been stable now for 20 minutes. I have the vent completely closed and the daisy cracked just a hair.
It is just NOT coming down.
Suggestions? Other than a time travel back to about an hour ago or 20 minutes ago when I threw the square in.