I'm planning on doing a few racks of apares today, as well as a ham. The ham requires 3 hours of smoke, and roughly the same for the ribs. I want then to be finished at the same time, so I figured that I'd put the spares on for the 2-2-1. Smoke for the first 2 hours, then add the ham, foil the ribs for 2, and then smoke unfoiled for the last hour. The question is, will the foil keep the ribs from getting oversmoked?