I've been in the game of Bowhunting 54 years & switched back in the 70s from wood, Fiberglass to Aluminum. Tried Carbons 5 years ago for 2 seasons-killed with them but never grouped as well as my Aluminums (cost more also) & did not get the penetration (same heads-same weight bow). Anyway, gave em to my son & went back to my XX75s. he loves em but did have 1 shatter on a Big Hog & another crack but not break. I shot through an Antelope this Aug. & used that same arrow for qulification in a "special" bowhunt & it's the one going to kill my deer this fall. Aluminums for me from now on...