I like spares and tips. I usually manicure it myself, removing the membrane, flap, tips and squaring it up into the St. Louis cut. The St. Louis cuts have been a couple bucks/lb. so I have been getting them.
I have found that the two hours wrapped in the 3-2-1 method does wash out the flavor of the ribs, swimming in rib juices without adding foiling liquid. The 3-1-1 naked the whole time seems like a good idea. I've been doing Bear's cooling rack in a foil pan during the foiling stage to keep the meat elevated out of the juices and prefer that over food being in the juices. That would be a little tricky with ribs. I'd probably need baking sheets and cooling rack to do ribs that way.
In my Mes Gen1 40" I removed the chip housing/tray so it's an open heating element for my mailbox mod. When I'm done smoking I want to have as little air circulation so I can smoke/cook naked the whole time without needing to foil, keeping it as moist as possible with great bark and not opening the smoker. So I turned my chip loader into a plug to seal the hole in the smoker (I cut most of it off so it's just a handle and a circle at the end. It looks like a biscuit cutter with a long handle. I wrapped the end in foil and it fits perfectly snug in the wall of the smoker without extending into the smoker. I plugged the grease drip hole so no air comes in there and do not poke a hole in the foil lining the bottom drip pan. I never get puddles on the bottom just drips so no worries. So after those two mods and closing the top vent as much as possible with therm cables coming out, I'll have to see how things turn out.
-Kurt