yep got a letter advising me of this, one guy on here, did the cad, and got under 7units, but needed to do the test again to try and get a pass, during the retest he hit 5units and under 6 units, ie a pass, but because they said they needed to average this he still failed, needless to say he was not impressed, and i cannot find anything regard the procedures for the cad, and to be honest i was pi**sing myself laughing when they promote the cad as 100% accurate, how can that be when the technician to tested me , clearly stated, if you cannot detect a signal that have a guess, how the hell is that accurate.....