Interesting Cook/ Temp Control Issue

xfire_ATX

Not a problem in the end everything cooked fine
Using PSWoo, 2 half stones and grate at felt- this is important later

Was cooking a 12# Turkey on Friday, Spatchcocked and seasoned.
Light Egg 3 hrs before I want turkey done
Temps coming up, went out and adjusted when at 300 with anticipating to settle into temp- ~350.
Went in house to finalize turkey and some other items and looked out and the egg blew right past 350 and was working to 450... shut down bottom to credit card opening, added Daisy wheel and closed down pretty much.
First thing I notice is smoke is billowing out at the gasket line... I think hmmm thats odd.
Later I notice it seems to have developed a horrid under bite.
Any way Turkey goes on, expecting a roughly 75 min cook and 2 hrs later its jutting hitting temp.
Pull and Rest in cooler, close bottom damper and put ceramic cap on and go on about lunch.

2 hrs later I am back outside to talk with Brother and I look at egg and think man its not really cooling down.  Put a quick hand on it and its still plenty hot.
Its at this point I notice that the underbite is not that, its the grate keeping the egg from closing.
Grab some gloves and this cast iron Grate holder I have and manhandle it enough to be better and now able to close the lid fully.

Now Saturday in prep for UT/ AM game (HORNS WIN) Im making Juicy Lucys and and pull the PS/ grate assembly out and investigate grate.  When I cleaned it pretty well before the turkey I didnt get in place worth a SH!T apparently as I had to pry it off the Woo and then I lined it up and back on.

Long story I know but the oddest things can make the cook more difficult and timely than it should have been.