well, alluminum are def straighter than carbon, but carbon if more durable. I shoot Beman Ics hunters, but with any carbon the straigntness is usually not consistant in a dozen arrows. I would use tha carbons but check the straightness on a spin check tool, and use the best arrows for your hunt. I bought a dozen of
bemans last year and I had 6 that were ok.
But the problem is not just with Beman, it is carbon arrows in general, even in the high end carbons like acc. The higher end carbons are better, but not perfect. So I would go with carbons just make sure you take the "cream of the crop", or the straightest out of your dozen.