Thanks for the compliment Duane.
You know, it is amazing to me that all of that rotating mass inside an automatic has very little keeping it all aligned and centered. There is the slip yoke at the back (provided the bushing isnt worn and you have proper yoke engagement), the one ball bearing in the tail shaft, the direct drum suppprted by bushings on the back of the stator and the nose of the input supported in the torque converter.....provided your eng to trans alignment is good. I really am amazed that none of this vibrates.
When you load the rolling elememts into the sprag it becomes apparent how much that inner race can move around. If you twist it and push it to one side the rollers will allow if to move way off center. I believe this happens due to case distortion and the internals moving around under torque, and the rollers then jump pockets and the sprag fails...
Just my opinion though.
