Aluminum. Reason one-I have always shot aluminum and ther is no point in changing.

I am staying with aluminum for three prime reasons-our local 3-d courses are littered with shattered and broken carbon arrows of all makes, models, and sizes but no broken aluminum. A partner bought a half dozen Easton Carbons [correctly sized and spined] before the newness wore out one splintered as it came off the bow and one split as it hit the target.

I have broken and damaged many aluminum arrows in 40 years but over all these are miniscule in number.

I am not slamming carbons . . . there are many out there who have not had similar experiences and are very well pleased . . . these are MY REASONS for shooting aluminum and not changing to carbons.