RJ:
It's not that I don't agree about the value of hard data, but at least in my hands, there would be enough other variables in any critical 10 shot group test that measuring CTC accuracy pre/post MB would likely be meaningless. The pre/post MB recorded velocity data I have on two of my air rifles would vary not only from the addition of the MB but also a tune and spring replacement and would also be meaningless. And critically testing a null hypothesis on performance enhancement with a MB is way down the list of things on which I tend to spend what trigger time I have. I am usually looking more at optics, pellet selection, and shooting technique -- or just smiling and shooting, not worrying about anything technical. Sorry dude.