What I'm really getting out of this is process-over-performance. It appears to be that the process is... if a non-postive ETD can not occcur, a resolution pat-down must be performed. The issue is, the cause of the lack of a non-postive ETD isn't taken in to consideration. Examples... all the ETD machines are broken, the SOP says to do an ETD, they can't so they have to do the rpd. Or... the ETD fails the control test before testing the pax, they can't do an ETD, so they have to do the rpd.