Beware of things like that. Some guy does a little experiment, comes up with a certain result and writes it up in a magazine article. What he doesn't put in his write-up is that that is the result HE got on THAT particular day, with THAT particular chronograph, in THOSE particular conditions. It most definitely does NOT mean that everyone will get exactly the same results in all circumstances.

The thing to do with these kinds of articles is to maintain a healthy amount of skepticism and do your own testing. Find out whether you can repeat his results. Then, test how it works by putting yourself in positions you're likely to encounter under hunting conditions. Standing flat footed in the back yard, shooting arrows through chronographs and sheets of paper is one thing. Twisting around, bending over and shooting from less than perfect target shooting form is quite another, especially when the adrenaline is pumping, you're likely cold and tired, maybe even wet and miserable.

Will those arrows still shoot as well under those conditons with the short fletching as they do with the longer fletch? As a bowhunter, THAT is the kind of testing that is meaninful.