Camron Rust wrote... any upward movement is not automatically a shot. You have to officiate the play and make a decision. You base the decision on what you feel the player was doing (or trying to do) at the time of the foul.
Agree. It's not in any mechanics manual, but, on the close calls, once I come to that decision, I immediately announce it, loudly, at the site of the foul, "That's a shot", "That's a pass", or "No shot". I do this immediately, and loudly, at the site of the foul, because I don't want my partner, the players, the fans, and, especially, the coaches, to be surprised by my decision while I'm reporting to the table.