THERE ARE INSTANCES WHERE YOU DONT HEAR THE PING ITS SO MINIMAL .BUT THE DAMAGE IS STILL TAKING PLACE BUT YOU SHOULD BE OK THE RATIO YOU PREMIX HAS ALOT TO DO WITH IT ALSO THOSE GUYS STILL RUNNING THE OLD 927 CRAP DONT HAVE NEAR THE PRE DET PROBLEMS AS THE GUYS ON 50;1 AMSOIL AND KLOTZ THE THICKER THE OIL THE LESS VOLITAL YOUR FUEL IS