I will be making my trip into the land of rib smoking this Sunday for the whole family. I am going with spare ribs, St. louis style. Looking for a few pointers, is 3-21 the best for spares or 2-2-1? Mop or not to mop during the smoke? 225 the target smoke temp? And should I rub them just before the smoke or the night before? Will be smoking for 8 adults and a child...we will be grilling some country style ribs also, so that should cut down on the amount of spares that I need.