OPI was not technically committed until the ball was thrown past the line of scrimmage, therefore, the flag followed the catch.

OPI is a strange penalty because the offense knows the play. I had a blantant one on a try for point. An A player blocked the B player while another A player came underneath and caught the pass. If the play had been a run or if the pass had not crossed the line of scrimmage there was no foul.

The opposite is when an A player comes downfield and blocks a B player. Then a pass is thrown and caught behind the line of scrimmage. You are downfield and cannot judge the LOS, so, you throw the flag.

The U being in position to rule on whether the pass was completed behind or beyond the line joins the official's conference and it is determined no OPI, you wave off the flag.

OPI is complicated and probably why it is not called as often as it should. I was observing a ACC crew the other day and saw an OPI that went uncalled.

As the original poster (but not a member of the crew), i can confirm that OPI was called

Keep These Coming
 

Terpzebra,
These video clips are VERY helpful, as they provide real life situations.
PLEASE keep sending us these kind of cases.