I have yet to experience a fail personally, My stuff, Customer's, bone stock to medium-aggressive....well, not true. The 2.3L OHC Ford in the 'stangII, started losing a lobe on #3. Found out someone forgot to screw the pipe plug in the tail-end of the cam. Built the engine, made sure cam was plugged, & grooved the journal at the rear so it fed from both ends...solved. Speaking of the mid-'80's, I have a full can left of this magic cam elixir,....lets start the bidding at One Millleeeon Dollerz!!