No Ball - No Whistle???

[BulldogMcC]

I agree that if I see the ball in player possession as the pile stops I will kill it there, but in the case presented, he lost sight of the ball in player possession as it was still being advanced. After he lost sight of the ball is when the pile started going backwards. I think that makes this one of those, you have to see it to call it plays. No, I don't want the ball to come out after forward progress is stopped but if I cannot see a dead ball, I am loath to blow my whistle. The whistle isn't causing the ball to become dead, the action does.