I too lost a cam during break-in.I too agree that there is nothing wrong with traditional oils other than the fact that ALL zddp has been removed from the
oil.This is a crucial element during break-ins.If you read the article in hot rod that was mentioned it goes into great detail.Almost all good engine builders agree and recommend running only on the outer springs till after break-in.Almost all posts are on the money.I chose to go to a hydraulic roller cam as they need no break-in Regards Jack