NFHS: false start?

[Winkley]

I've been having a discussion with a few officials I work with about false starts. I contend that if a back misses the snap count and jumps early, it is a dead ball false start. They say that the back can reset. If he does so legally before the snap, or goes in motion legally, then there is no problem. If he does not get set or go legally in motion, what we have is a live ball foul for illegal motion.

The rule book is somewhat vague on the matter:
Rule 7-1-7

ART. 7 . . . After the ball is marked ready for play and before the snap begins, no false start shall be made by any A player. It is a false start if:

a. A shift or feigned charge simulates action at the snap.
b. Any act is clearly intended to cause B to encroach.
c. Any A player on his line between the snapper and the player on the end of his line, after having placed a hand(s) on or near the ground, moves his hand(s) or makes any quick movement.

The case book does not address the matter.

The Redding Study Guide to NFHS Football Rules states, "A back who jumps the snap count and lifts up from his position has most likely committed a false start. However, there is no general agreement among officials about what constitutes a false start by a back or split end." (Demetriou, 2007)

I believe that missing the count is a shift that simulates action at the snap.

What do you think?