Saw my two partners today. One told me I was right before I could even bring it up. I gave the other the rule reference.
Today, we had a 5 second count on a held ball throw-in. i told the timer to switch the arow. Wroking with the smae partner who conceded I was right about the shot clock play. He questioned me as to whether it should be switched or not. I stood my ground.
We switched the arrow.
It's amazing that some very good officials have to discuss these things out, when those of us who frequent discussion boards...well, it's second nature to us.