Lot's of truth in your post Shaman - good for you for posting it.
I have a friend who gets his deer and elk every year, his sight-in method consists of setting our one those 5 gallon plastic buckets - he takes a shot or two at it and calls it good enough. Like he says the kill zone on big game is about the same size as the bucket so if I can hit the bucket I can kill a deer and elk.
Sometimes we overthink things - and that's a fact.
drover