Good chrony. The better news is that if you do end up shooting it, they'll fix it or replace it pretty inexpensively. Very prompt customer service.
You won't shoot it if you 1) put a target behind the chrony so that you have a fine point to aim, and 2) remember the bore and scope height relationship if shooting rifle.
I shot my diffuser rods after my buddy asked about the previous velocity right as I was letting one go. My eyes went down to the chrony, and so did my aim. Shook it all apart. I re-assembled and it worked ok for a while, but eventually sent it back.
Away from Glocktalk for a bit.