I can't seem to find a definitive answer to this, hoping someone can help me out. Using an electric ECB, smoking spares, 3-2-1. What king of time increase should I expect smoking 4 racks of spares as opposed to 1? I've only smoked ribs for myself before. Never tried multiple racks. I'm trying to figure out the timing for tomorrow and I have a bad feeling it's going to take quite a bit longer than normal. Thanks for any advice.