1. Don't spread your lit coals evenly, dump them in a depression in the center of your unlit coals.
2.Use what ever you want for a heat sink, it's your choice. You can use water, no water, clay saucer, what ever.
3. Now that you've cleaned out the inside it will run a little hot just like when it was brand new.
4. Season it up with a few cooks and find the sweet spot where it wants to cruise at. My 18.5 WSM seems to cruise around 260.