false start rule

[Jim Black]

I was officiating a scrimmage last Friday. When team "A" offensive line was supposed to be set for the required one second, I noticed that all the OL except the center and TE were moving their fingers in and out like they were squeezing a lemon. The other hand was on the ground and the rest of their body was still. I called a false start, team "A" coach got quite upset. I explained the rule to him that both hands had to be set and not moving for one second. He did not accept my ruling and got quite irate. He said his OL have been doing the hand thing for years and that this was a method to psyche up the OL players. I saw the hand motion as a method to try to draw the DL offside. Need help on this and so does the team. If I were the DL, I would jump offside the first time I saw the hand moving and point it out to the game officials who whould call it the next time it happened. Am I right or is the team "A" coach right