Reflex video

I have done similar practice before but it is interesting to see it again from an outside prespective. Things I remember from this type of exercise when we tried it (though it's been almost two years now):

-The attacker has an obvious advantage. 

-It teaches the importance of following up when defending. You can't "survive" long if you continue to play the blocking game. 

-If you are in range, so is he. Again, blocking only is a good way to get slowly beat to death.

My favorite part is at the 0:36 mark where the defender flinches to the attackers hands. That is exactly what he needs to do as soon as the distance closes. Take charge and move first.

I can also see some value for the attacker in the drill. He can learn to eliminate telegraphing movements when striking as long as there is good feedback from the partner.