Things I liked: Penetrated like nothing else, good speed and accuracy under 15 yards.
Things I would have changed: About 10% had minor flash on the plastic skirt, not much but enough to cause a good off-course pellet.
What others should know: DO NOT use in anything that will shoot it above about 600 FPS, any deformations in the skirt will hurt downrange accuracy, far more than I thought even. Although it was neat to see the bad ones I picked out go downrange like a bent arrow to the berm 200' away, it didn't inspire confidence that I could hunt with the good ones, even when allowing for zero expansion. Good for punching holes in your object of choice, but not a lot else.