Hey PD what do ya mean by "old block"? Reason I ask is I have a block and it does exactly as you say, broadheads slice big pieces out of it. Just wonderin if they have improved that on a newer model cause like I said on the post before, it sure as hell aint holdinup like they say it should. I guess I should mention that mine is 2 years old. Have they come out with a better design since?