Here is a variation on Keith Garcia's load 12 challenge that we came up with for use as a drill. We also want to make sure that everyone understands that we are not discounting the original, just that this adds a few more things that we have seen quite a bit in matches.
The drill focuses on shotgun loading, target aquisition, loading on the move and shooting on the move. Let us know what you think.
Advanced Load 12 Drill: http://youtu.be/IeQBqz6VBGo