Talk about deflection and what a load of crap. Yes there are scientific papers that confirm inconsistent surfaces, and who knows how Oliveris and Young’s home tracks on private property really are, increase the risk of injury, soft tissue injury. There are more scientific papers that confirm that hard surfaces such as the Byford fast track cause distal bone and joint injuries. And even more that say poor camber and tight turns make hard tracks even greater risk of distal limb fractures.