if you practice shooting through the mesh at a target with mechanicals, how will you know if the mesh opened them or not? they will be open when you retrieve them from the target. If your arrow flight is all goofed up and you cant hit the mark, that would prove it, but what if they were opening slightly (or completely) and STILL flying straight? there really wouldnt be a way to know, and if some were opening through the mesh and some were not, then the real problem would be if the blades were aligned on some arrows and not others and when the moment of truth came on a monster buck or big tom , man, i would be so worried i probably wouldnt shoot......
have fun!
moose