These are what mine did. It slid great untill the bike flipped on the bars.
I didnt flop it down though. I lowsided under power and pulling for every mm of ground clearance I could get. I went in on a bad line, way to early turn in, then ran out of lean angle to keep it in my lane on the exit. The centerstand, and footpeg/brakelever pushed the rear tire out of contact with the ground and away we went. The slider slid because it could slide. It bent the bolt and the deformation of the bolt seperated the edge of the frame on the engine mount horn.
They slide good when they can, when they cant they break. Thats just part of it.
My pants, jacket and boots all took damage as well, but I got up. I rode the bike home. Thats what sliders really do. They let you (usually anyway) ride the bike home.
Sure not knocking you man, just saying that Trex is a good company with a good rep that does a good job. It just cant do everything, it helps to reduce damage in most cases and thats really all that can be asked of them.
Now SUXXORS on the crash man. Are you going to go naked now, like all the cool kids?
Did you get hurt at all?