Tomorrow I will be cooking 3 slabs of BB and 3 racks of spares at the same time on my 22.5 WSM. I plan on putting all 6 racks on top in a rib rack. I also plan on foiling. Not sure if this is the best way to go so I am open to other suggestions. Also, will I notice a difference in the cooking time between the 2 cuts? I have had some good success with spares but have almost no experience with BB so any help is appreciated.