Good info considering December 21, 2012 is almost here!! 'Tis a real bummer that the only way to take a zombie out is with a head shot, hence affecting the sweet meat. It is clear that your weapon of choice is a shotgun. Perhaps someone using some non-expanding (e.g. XM193 FMJ) bullets can determine and demonstrate if a zombie head can be cooked like a roast.
Just when I think you guys can't get any more over the top, you done gone and done it again.