I LOVE my block targets, BUT BROADHEADS CHEW THEM UP. They are layered foam that stop the arrow with friction, work great with field points and pretty easy removal. With BH you start to slice the layers and it chews them up pretty quick, plus when you pull a BH out you get foam with it.
I have a cube I shoot BH at, but field points are a pain to get out of that. Yellow Jacket same thing, brutal to get field points out of.
The new block seems to have a shell around it, but I would guess you will chew a hole in that pretty quick