Carbons work great. figure out the total wt. of broadhead, inserts, etc. to get your rough spine # and then bare shaft tune before you glue up feathers. The carbon will outlast aluminum by far over a season of practice pulling out targets, misses, stump shooting etc. When I used to shoot recurves more I beat the living hell of carbon arrows and only broke them hitting rocks on misses, and even then a few escaped that.
