Bare shaft testing is a very useful tool, but it has to be done right. The first step is to make sure the arrow is not bouncing off of the bow. If it is hitting the bow all bets are off. The arrow he is using is grossly overspined in any world I have ever been to. I will just leave it at good luck and maybe you can mask the problems instead of fixing them. Overspined arrows will often kick to the right and read as underspined if they are so far off to bounce off the bow which I am pretty sure what is happening in this case.
