Well, you are getting closer.
Since most bowhunters pull dramatically less than 80#, and shoot arrows heavier than IBO, I think you can understand the performance differences we are talking about.
I won't belabor the point, because it is obvious to me that you have a much better understanding of the ballistics of typical weapons from both categories now than when we started this conversation.
Every once in a while the other guys are right, you know.