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The wear on those bearings looks like text book detonation.
Bearings should never "wear" in normal use, the oil wedge should always keep the bearing from ever touching the journal, it's only in cases where the oil film breaks down due to oil dilution or cylinder pressure spikes that the bearing is damaged by rubbing the journal.
What you guys are seeing in these motors is not going to be fixed by a few tenths of moly sprayed onto a bearing. Those coated bearings are sacrificial, we use them on race motors to keep the motor from grenading in the second or two it takes the driver to get it shut down in case of an oil system failure. Once that failure has occurred, the motor is disassembled and the bearings are replaced because it's known that they will be worn at that point.
In a motor which is maintained and running properly I can take it apart after several seasons of racing, or in the case of street motors, 50K miles and the bearings should look like the day they were installed....most oem motors these days have such good oil systems and tunes that the bearings look like new past 100K easy.
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