Thanks you for these results. We are currently updating the part drawings and checking jig CAD and need to confirm the 7mm shorter length in the checking gauge.
Can you put the original master frame (before 7mm cutback) in the checking gauge and compare to the after 7mm cutback frame.
The checking gauge backstop is to be 2mm from the end of nominal length so the measurement after 7mm cutoff should be 9mm from backstop.