Man, patterning is only half the equation. What about practice! I pattern and then shoot some Pepsi cans in feild situations. I like Pepsi 'cause it has those turley colors and is about the size of a turkey head. Stick 'em on a stick and put them popping up over a log, just beside and behind a tree, in some thicket, and at all different ranges.
I not only trust the pattern, I trust I have squeezed the trigger in whatever situation I might be in.
Not patterning would be a little nerve racking for me. Nerves are bad enough out there