The Lycoming quotes on the APS website make me suspect that maybe Lycoming have gathered the data, and they do know at least some of this,
Is this the same 'ethical ' Lycoming company that decided it was cheaper to pay out a few grieving relatives than it was to replace the hundreds of dud crankshafts they knew were out in the field? At least it was cheaper until they were sprung.
Also does this all knowing company even have an engine development test cell?