I just voted "foil", bit then I realized that I assumed that to be "foil after removing". You probably meant "foil during cook" didn't you?
I don't usually do that, but perhaps I should...my birds always seen to turn out pretty dark.
Big JT's Smokin' BBQ Competition Team
“If we could change ourselves, the tendencies in the world would also change. As a man changes his own nature, so does the attitude of the world change towards him.
We need not wait to see what others do.” - Mahatma Gandhi