Fired up the drum this past weekend for some babybacks. I have been reading other UDS users posting about how the drum is a very moist cooking environment (and I agree based on the moisture accumulation on the bottom of my drum) So I decided to do a little side by side comparison 3 slabs, rubbed and ready for some smoke One slab went about 5 hours straight through. And the other 2 got a modified 2-2-1 method. It was probably about 2.5-2.0-.5 The slab that is closest in the pic is the unfoiled slab. You can see one of the rear slabs fell apart when I picked it up of the grate Here is a cross section pic. The one on the right is the unfoiled All in all it was good. My temps were running a little hot today so the bark is a little too crisp. The meat inside both was juicy and tender. But the unfoiled slab had a crisper exterior. I think that is probably a by product of temp and maybe a little too much brown sugar in the rub. I will probably continue to foil in the future but wouldn't mind leaving them unfoiled from time to time.