Has anyone used or had any experince with the piston point broadheads or the new trophy ridge "undertaker" piston type head?

I haven't, but I did see a barrell test post hear a month or so ago and they didn't do to well compared to many of the others shown.
I thought about looking into them, but I won't now...

I tested them for my website a couple of years ago. Overall they are excellent heads.

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i wouldnt use them after seeing will primose have to hit one hard on a tree to show every one how they work he hit the tree like 2 times to get it to open if you want to go that rout get rages