I was going to cut off the spar flange for the SB 14-01-31 and decided to check the interference before making the cut.
I fail to see how the flange interfere. There is also good access to set the rivet.
The below picture shows how my modified HS-405. Trimming the spar flange seems completely unnecessary when using the HS-405 modification instead of the new HS-00005.
What am I missing ?