Simultaneous Inside Hooking Block with Counter Hammerfist and Follow-ups

http://youtu.be/Q0dl2DNsxX4
This is similar to the drill I did yesterday.

The attacker strikes or grabs to my chest.

I execute an inside hooking block with my lead arm while striking with a hammerfist with my rear arm.

If he stays after my initial counter, I stay still while following up.

If the attacker withdraws after the initial punch, I may have to advance upon him to land my follow up punches thus preventing him from regrouping to mount a successful follow up attack.

Without prejudice