RE: It'll be a cold day in he....
Last spring at a 3D shoot; heard a "dry fire", turned in time to see a shooter at the forth station reaching for his face. A Carbon Express shattered at the fletching end upon release. Looked like a kitten had scratched his cheek. Later while talking with him he said that he didn't check for damage prior to shooting. So the injury, while mild, was his fault not the arrows.
As for the debate on carbon vs. aluminum, both have advantages and disadvantages. With that in mind I just ask myself 'what's the difference and does it really even matter?'
It's a personal preference choice, I'm perfectly happy with my setup so why change.
Shoot often - Hunt always