RE: aluminum or carbon
Aluminum arrows bend, carbon doesn't.
Carbon arrows are generally lighter, with flatter trajectory.
Carbon arrows seem to be slightly more difficulte to quite down across the rest.
Carbon arrows are AT Least as expensive as good aluminum arrows.
Carbon arrows are usually much lighter, with a much higher FOC, contributing to sometimes poor broadhead flight-especially with fixed blade heads.
Is it possible carbon could penetrate better, with a light, but stiff shaft that flexes less at penetration? kind of like a drinking straw compared to a toothpick.
Larger, aluminum arrows are sometimes easier for someone of less experience to attain better vane clearance around shoot-through rests because of the larger space between vanes.
Carbon's seem to be more forgiving for shaft/poundage by increasing or decreasing point weight-less choices for shaft sizes are needed and you can usually make work what you have, even if not the ideal size.
Carbon arrows are much more durable and most reliable.
If longer shots are your fortay, then the smaller, carbon shafts have much less wind-drift than the aluminums. At 60 meters I've seen a 2413 have a 14" wind drift, where as the ACE's at the same target had a 2" drift for the same wind speed. 30 yard would be less noticable, but still noticable none-the-less.
I personally use the CE shafts for hunting(used the terminators last year), have used the 100's and 200's, also have used Gold-tips. I have used each of these with mechanical heads, and would only recommend mechanicals for carbons. You can tune fixed on a carbon shaft, but why bother, and if you are inexperienced it will be difficult and pretty critical if the head and shaft are not the right combination.
Good Luck!!
Jeff...U.P. of Michigan.