Wow that's good to to know that your a archery physicist. I'm just some dumb **** redneck from southern IL trying to have a little fun and get some opinions from people to learn something new. And try to understand the tools I use better. so maybe you can add more to this and give me a physics lesson and explain what Dynamic Efficiency is and how it relates to me screwing around in my back yard and how big of a piece of crap my Black Ice is because its Dynamic Efficiency " is not too good. "

Thanks For the input.