What if manufacturers replaced their spring style arrow retention spring with something like a whisker bisket that you could shoot through? A lot of the noise a crossbow makes comes from the arrow retention spring, a style like the bisket could cut some of the noise. Just a thought. Also, just like drop away arrow rests for compounds, what if they had a retention system that would raise after the trigger was pulled? It could be more rigid and eliminate the noise that is so accustom to the spring. When the arrow would is inserted, it would lower onto the arrow holding it in place. Kind of a reverse of the anti dry fire mechanism that TenPoint has.