[Mister Bob]

I used foil to make a crutch once. I leaned...it bent...I fell!
Foil does not make a good crutch!

However, for BBQ it can be a valuable tool if used correctly, the purists be damned.

Some tips:
* Like ZILLA says, wrap as tightly as possible.
* Add a little apple juice for pork butt or ribs, or beef broth for brisket.
* Double wrap and handle carefully so you don't get leaks.
* Fold, then fold the fold, then fold the seam again for a nice tight seal.
* You can use this method to make a double wide for extra large cuts.
* Use heavy duty foil, commercial size.
* Wrap when your butt or brisket reaches 165 internal, or when the bark looks the way you like it.
* Shiny side out (ONLY because it looks better that way!)