Everybody is talking about how well the TSS is and their bird didn't flop at all after they shot it. I shot this one Saturday and it flopped for 5 minutes. It was shot with #9 TSS at around 20 yards. I can't even start to count the pellet holes in its head and neck. I don't think TSS is the reason they don't flop. But I love the devastation from it. I've killed 2 with TSS and both of my boys have gotten 1.