Thanks Bruce! We just finished uploading the second independant evaluation, and if you thought the first test was convincing, just check out the second one. The tester took the Tedbrakes down several slopes including a 24 degree slope that was very damp with evening dew and had a 2 ft. ditch right at the bottom of the slope. Watch Second Independant Evaluation Here If you are in doubt about whether they work . . . you need to watch this video.