The problem I have with JUY 543 and 60 is having a length of cable sticking out after the retaining screw, cutting it to exactly the right length is tricky. The extra rubs on the inside of the face-plate and I worry that it might push it off, not so much a problem on the 60 as the face plate is better located than on the 543 (not all, but certainly the one I have). On one 543 I piushed the cable through, marked the length, cut it, epoxyed the end then loosened the lever to relieve the tension, tightened the retaining screw, then re-attached the lever. I have thought of leaving a couple of cms extra and pushing the excess down th pillar that contains the toggle chain. As it happens they all work and I havn't lost a face plate.