Personally as stated, I'd stick with your ACC's as well. It goes without saying that there are is so much more than effects penetration than anything you would gain or loose by switching arrows.

I reference my elk hunt...at 33 yards I passed through that bull and had my arrow sink in the ground beyond the bull 10 yards.....

Same exact arrow, not a different one, SAME arrow, new blades I didn't passthru a doe when I came home that same year.....All but the same spot on the animals as well...go figure!

The arrow, Beman Trophy Hunter 70/90

Now I doubt I'd ever shy away from my Easton ACC's...