[Dakota]

You guys keep excerpting the rule to leave out the "forward motion" part. 6-3-C says she must not stop the forward motion. Since she has not started the forward motion, the forward motion has not stopped.

Now, if she did what was described and then just never delivered the pitch, then that clearly violates the "immediately" delivering the pitch rule 6-3-A.

Again, I don't think 6-3-C applies since the forward motion has never started. It is the forward motion that must not be stopped or reversed.

Therefore, for this to be illegal, it must be judged to be violating 6-3-A in not "immediately delivering the ball to the batter" after making a motion to pitch.

Hence, my reference to the look back rule. How long is "immediately"? The OP says "for a second" and "noticeable pause". Without seeing the pitcher, I'm having a hard time making the absolute ruling (coupled with sneering sarcasm) that some of you seem comfortable with.