You are speaking in opinions. I am speaking in facts. We aim for the lungs and sometimes hit the shoulder. I wont worry as I can expect positive results. When that happens to the light arrow crowd, they blame everything except themselves but tout how fast their rig can fling a light weight dart.
Im glad we spent this time together and I think you picked up some good facts and data that will aid you and will make you a more lethal bowhunter. You are welcome.