I've blown through so many moving animals with carbon, especially TX, that I don't have an answer. I hunted deer in TX for two years before I learned to aim 2"s under them. Since I learned that, I killed a nice 8 and two 10 pointers, and several doe.
15 feet up, and 15 yards away, and the entrance and exit were the same parallel. Those deer were duckin and leaning away so hard that it looked like I shot them standing on the ground.
I'm not sure what your issue is, but its not the arrow.