Of course Bolt does eventually discharge and Zack get's the full force of it. His hair stands on end and his eyes widen as the shook goes through him. If it hadn't been that he's had worse in life he might have maybe fainted from the shook but it did knock him down to his knees.

His body shook a bit, unable to move for a moment as he started to get his bearings again. "Jeez...that...wow...ow that hurt.....I think it's time to go back to your trainer Bolt."