I had an experience with the Xion products 2 weeks ago... I did a ratchet stunt for a series. We did the shot in the forest next to a little river and the ratchet pulled me back. Unfortunatelly, I missed the mat and really hit the rocks with my back and with the coccyx. Everybody was running to me and asked me if I got hurt, but nothing was wrong and I did not feel anything! I was protected by the XION pads very very well and we finished the shoot well in the evening.