Congrats on the
WSM. A GREAT smoker.
With the 22.5"
WSM, dump load, bury some wood, add some wood on top, then dump 1/4 hot chimney for 225F, 1/2 hot chimney for 250F, and 3/4 hot chimney for 275 to 325F. I don't minion. Tried the minion method and didn't care for it. Took too long for the smoker to come up to temp. The rest below is just history.
I have had two separate smoking evolutions with my 22.5"
WSM; a leaky version that would not seal and a sealed version that is air tight.
First evolution: new, out of the box, leaked like CRAZY from the door and the lid! Expected it to seal with use. It didn't. That didn't stop me from smoking though and the
WSM liked to coast along wet or dry at 260-270F. I could get it down to 225-235F but the bottom and top vents were practically closed and eventually the temp would climb. When I loaded it with charcoal then shut it down (closed all vents) after say a 6 hour rib smoke, more than half the remaining charcoal would burn up. I'd just shake off the ash from the remaining charcoal, carefully lift the loaded used-charcoal grate and ring out of the bowl, clean out the ash, put the loaded grate/ring back in the bowl, fill it up with new used charcoal, then add 1/4 to 3/4 hot chimney of charcoal depending on my initial target temp desired. I'd go through 30-40 lbs of charcoal a month on 4-6 smokes.
Second evolution: installed the gasket kit and a BBQ Guru after using the WSM for six months. Major improvement! Now very minor leaks. When I shut it down the chamber temp starts dropping immediately. Got six WSM smokes and two 22.5" Kettle grilling sessions out of 20 lbs of charcoal. I still stirred off the ash and cleaned out the bowl but basically only added 1/4 to 3/4 hot chimney to the used charcoal in the ring. I swear, it felt like the amount of charcoal in the ring was actually growing (Kingsford Blue Bag). Smokes ranged from 1 hour (shrimp) to 8.5 hours (stubborn chuckie). Grilling sessions were 30 minutes each.
Since your WSM is new my only recommendation would be install the gasket kit. Not necessary but it makes for one tight WSM and will extend your charcoal. BTW, I had the gasket kit sitting on my desk for months and didn't install it because I was both busy and constantly smoking. It has to cure for 24 hours. Before I installed it I stocked up on 480 lbs of KBB when it was on sale $10 for 40 lbs figuring it would last me a year. Well, now it looks like it will last me two years. Every time we walk in the garage and past the pile my wife says "how long did you have that gasket kit?" I just smile.