I apologize up front I have no hard data on this, this is just a general observation.
Judges insight only changes your damage to holy and gives you plus 20% penetration.
Here's some questions.
1. I've been using this skill over and over and I actually think my damage goes down!!? Can anyone help ? Ensign where are you?
2. Another one I'm sure Ensign knows

If your damage is changed to holy which supposedly ignores armor why is the +20% armor penetration beneficial ? Or rather how does this add to the damage ? I can obviously see applications against armour that has + Holy Damage coverage, but I haven't seen any armor like that.