It's easy to mistake the flam (drummer term for that double impact sound) for a double hit. It could just be the rapid succession of the initial stroke impact and the sound of ball collision.
I have explained that on more than one occasion. In competition I have requested a ref to watch the hit many times. In league play I request a member of the other team.
Reminds me of Dirty Harry, "was that one click or two?" Wait with Dirty Harry the punch line was, "Do You fell lucky?" Sometimes the umpire is open to appeal. A simple explanation of why I respectfully disagree, he still gets the final call. Sometimes I still get the wrong call.

Just like baseball, "there's no crying in pool."
So yeah a double hit would provide 3 clicks, not 2.
As a catcher in Little League baseball, I developed a close relationship with the umpire.
We had intimate time

together. At 8 years old I had one umpire that would grab the straps at their cross in the back and pull me back from the plate.

Just a little.

Ooops there I go Ramblin again. Think it's time for
So yeah develop relationships for credibility er uh credit. I would softly tell the umpire when they missed a call on the strike or ball.

We all miss a call on occasion.
"Once it's missed, oh well. Don't try to make it right with a wrong call that goes the other way." Well that was my silent thoudht.And uh prayer.

bigger things require prayer anyways.
