From: Houston, TX
Personally, I think "Shock level" should only be used for global event, such as Winter Offensive, opening Case Blau, etc. But to reflect "effective", that should be in the proficiency of each unit. So in normal circumstances, both side should have 100% shock level.
CMIIW lower proficiency also make units prone to "re-organizing"
But only due to combat reorganization - troops are so beaten down that they have to reorganize.
Shock reorganization, however, can represent C&C issues - crummy commanders or disrupted communications, etc.