[spike]

In my experience downswing blackout is the loss of clubhead awareness. Or better described as loss of lag pressure which is felt in the pressure points of the hands.

Another way of looking at it is when the clubhead is not moving away from your head.

Once you sense that the clubhead is beginning to move toward you our defence mechanism kicks in and we try to get out of the way.

Some of our friends see this and tell us to keep our head down when really we should be making our clubhead go down and stay down.

mho