FED Windup Question

[umpjim]

Originally Posted by harmbu

There is not more to the story. F1 completely stopped his motion and did not complete the pitch. PU specifically told the coach on offense that F1 can do this without penalty of a balk.

Without runners this would be true although some would argue only in FED that it would be penalized with a ball. With runners this is a balk. F1 probably realized he shouldn't wind up in that runner config and stopped. Was no one yelling step off?