How many times do we have to say with carbons "it is broke or it's good/straight" is a myth. It just isn't the case. At least with aluminums you can tell when you mess them up.

How do you know the same arrow strike that would dent or crease an aluminum will not damage a carbon? You best check them often and sometimes you still can't tell because they can let loose from the inside.

My suggestion would be to shoot different spots if you are damaging arrows grouping them that close. Not that carbons are bad, just not indistructable and perfectly straight forever like everyone believes.

Paul