[zebraman55]

THe posts for this thread regard the los as sacred (as it should be), but might the QB have some latitude for closeness to the los? In other words, at what point do you rule he has crossed the NX - when he is clearly over with both feet, over with one foot, over with one toe?

Also, having been an umpire for several years, I have always gone with the theory that this flag belongs to the R, and my role, if I happen to detect this, is to bag the spot of the foremost foot (as close as possible - on the yard line through it), and allow the referee to move forward and determine the legality of the action.

As noted, the Umpire does move up to the los, but in order to ascertain the legality of the QB's action, the umpire had better be at the los, with the appropriate angle. AN umpire might detect this action if the QB rolls and the flow of blockers/defender pursuit moves the same way. NOt so sure this is the Ump's call.

zeb