I would wait for the new Pro hunter ACC's.They are hitting internet stores now and should be at your local shop shortly.
They are pretty much the same as the ACC but they will utilize the HP insert,which should have better broadhead alignment and they also will use the Xnock,along with the time tested uni bushing system.
I prefer the carbon on the outside,imo,they are tougher this way but I have both and I was extremely impressed with the tunability and accuracy of the FMJ's.
http://www.eastonarchery.com/products/product/57