You came to the right place to have all your questions answered. Unfortunately, I can't answer them since I don't have that grill.
I will say this, you don't have to aim for 225. I do my best Q around 275-300. Try to find where your cooker likes to cook at and let it roll there.
Lang 36" Original Patio (Jessica), WSM 18.5 (Bullet Bill), Char-Broil Commercial Series 4 Burner gasser
Thermapen, Maverick ET73, Maverick ET72
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