Questions about shifts and motion

[JRutledge]

Originally Posted by bsaucer

If team-A lines up into an illegal formation and then shifts to a legal formation prior to the snap, is the play legal?

It is not an illegal formation until the snap. So yes an action that would be illegal at the snap is allowed to be changed into legal formation after being illegal.

Originally Posted by bsaucer

If two team-A players shift, and one player stops and becomes set, may the other player continue in sideways (or backward) motion during the snap?

No, that would be an illegal shift. They must come to stop before the other can go in motion or keep moving. Otherwise, they have violated the rule.

Peace