Green Bearings v OEM

A customer's Cuda weighs 4100lbs and he road races it. It's been past 150 on the highway, and on Watkin's Glen. Car has huge Baer brakes, low aspect ratio wide sticky tires, etc. After 10 years of abuse, the gears gave up, but the Green bearings have never been an issue. I'd like to have some examples of them "failing" due to corners. They fail due to incorrect installation, not design or capacity.