Ok so I found a target today:
The hero in the city had 132 attack and 60 int so I decided to hit
I ran the data in aero calc and it told me I would lose about 87k archers with my HH which has 420 attack and 81 int.
Heres the attack report:
As you can see aerocalc was of by a lot and thats not like aerocalc so I wondered what had reduced my losses so much. My conclusion was that my lvl9 star set helped alot, so much so in fact that according to aerocalc I got a 700 int boost from my lvl9 set.