this THE BEST way to go about butchering a really BIG GAME animal in the field.

http://home.att.net/~sajackson/bugle.html

I have used it on a moose, a couple sheep, more then a few caribou, and I'll NEVER go back to gutting first!

As to waisting meat. The only thing I can say is the only meat you waist is the meat you dont take the time to get! I can cut the meat off 99.9% of the carcass using this method.