Longeron yoke use
Uses that I recall off the top of my head are: on the HS innermost reinforcement angle rivets, to put solids rather than pops in the rudder horn, on the trim tab leading edge, on the VS ribs, on the wing rib to rear spar . . . Those are what I remember, but I know I used it a lot. It certainly isn't necessary, but it was really nice to have.