Just bought a used but in excellent condition 22.5 WSM for $120. I'm looking at doing some beef ribs but am curious as to how much charcoal to load in it. Was thinking maybe 2 chimneys worth of unlit and 1/2 lit or is that overkill for just ribs. Any advice or suggestions as welcomed. I'm so pumped to have this great smoker. I have a Chargriller Trio with a propane modified firebox but I want to venture into just charcoal.