Why is the last round shooting never the last round? One more round never means one more round. Matter of fact why does it lead to 4 or 5 more rounds? Why does one continue to shoot at the same dot on ones target? Continuing to blow apart arrows and fletches just to see how tight he can make a group?
I usually like to individualize my arrows at different target points and make sure there all flying good, I like having close groups but don't like blowing my arrows out!
Why? I think the answer is obvious. It feels good. It builds confidence. It shows you are doing more things right then wrong. The problem is.... that good feeling costs a lot of money and that is why I refrain from it.