How do you call this

[Smitty]

Originally Posted by Nevadaref

Okay, for the sake of argument say that I am the Trail official and you are the C on this play. When the ball strikes the bottom of the backboard and continues onward into the inbounds area of the court, I loudly say, "Good, keep playing," and extend my arms as if a baseball umpire signaling a runner safe, then a second later you blow your whistle and call an OOB violation for the ball striking the back of the backboard.

Now whose call do we go with?

How is this any different from the lead making the annoying foul tip signal as if to let everyone know there was a clean block, but the trail whistles for a foul on the exact same play?

And what the hell is this mechanic: "extend my arms as if a baseball umpire signaling a runner safe"?