Handling a Blitzing LB

[ljudge]

I have a question I need to ask our rules guy but I'm curious as to what you guys think. I was watching a game in the stands with a varsity head coach last Friday night and we got into a discussion about chop blocks, FBZ, etc. He was told that a blitzing linebacker can be cut below the knees if that LB was technically on the LOS when the ball was snapped, even if he was moving forward at the snap and not stationary.

We were told a player must be stationary, period. The rule book used to say stationary and I believe when they changed the rule to require all players be on the LOS, they may have changed the edit and removed the word stationary. I believe it had been there because before the rule change a player in motion would potentially still be in the FBZ at the snap and they definitely didn't want that player (in motion) blocking below the waist or being blocked below the waist.

Do I understand this correctly? I'm thinking the coach may be correct in this case and need to ask my rules interpreter. I looked in the rule book and it appears to me the coach may be correct due to a technicality (an edit at that). I don't really think the fed wants a blitzing LB to be cut at the knees by an o-lineman.

Your thoughts?