If you have a laser temp gun, you may want to check each rocker after the engine has run for a few moments. If one is severly mis-matched , I would expect that be hotter than the rest and therefore suspect.
This is just a thought , as I have never tried this [ b/c I would never mis-match], but it is a possible that could save you the trouble of wearing the cam out real fast...worth a try...
I would be interested in any results, if you do try it.
Those guns are great..............

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A Dalton