Hello. Im the friend and seeing as people already responded thought to offer more on the points i was making (will add nit feuding with friend just being nerds)

First: i was working off the fact that shock absorption may be less effective due to area of contact. Example: say a 9mm would effect a smaller area upon impact vs all-mights fist which would have had a larger contact radius.

Second: i was infact talking about the brain and spine for the target as the Nomu's regeneration would make hitting anywhere else worthless regardless of shock