I've got 3 tomahawks and one with the carbon core. Carbon doesn't make it any louder, all my bows are very quiet. May make it a little faster, but all of mine are different weights so that is a little hard to tell but my carbon core has become my favorite of the three just because I've been shooting it the best lately, probably more me than the bow
One of my tomahawks was a custom built bamboo core with walnut limbs and slings an arrow every bit as good as my carbon core bow. Can't go wrong with either. dino