RE: The Black Hole Target
If you are going to buy a broadhead target buy the Morrel's Yellow Jacket. I have not used one, but I have heard great things about them.
If you are going to shoot field tips buy a Morrel's bag target. I use the Morrel's Quick Stop bag target. It is pretty torn up, but I shot about 1,500 shots into it. I am looking to upgrade to the Morrel's Outdoor Range.
I bought a Block and was not impressed.