As a referee, How do you differentiate good sets from bad sets?
I'm a beginner volleyball ref. One of my main challenges is identifying double hits. I scanned the USAV rules and didn't see anything obvious about what is and isn't legal. I understand that a set must be "clean" and you must touch it with all the fingers simultaneously. I think the set happens so fast that I am not sure I'm actually seeing one finger/hand touch it any sooner or later than the other fingers or hand. In reality, I don't see how a human can touch a ball legally given the definitions I've heard of how to set a ball.