RE: I dunno .............. how do you guys do it ??
In most cases if you want to kill the animal, you'll get the arrow in the right spot. If you want to second guess yourself, consider all the options or possible outcomes, etc., you'll probably miss. This is not a thinking man's sport really. It's a doing man's sport, so just do it. I think you'll have better luck that way.
Whatever's wrong ain't the bow and whatever's right is the archer.