I killed 2 does a couple weeks ago, 1 with wood, 1 carbon. Same bow, same broadhead. Both were complete pass throughs...and the wood arrow had a tougher angle (treestand, high left entry, low right exit). Both deer went less than 50 yards. I didn't see a hell of a lot of differencew between the wood and carbon. I shoot carbon for durability and the broad range of spine wieght rather than penetration. I'm not saying carbon DOESN't pentrate better, but heck, through is through.....