There plenty of life in the clamps but here lies the problem, I can adjust the clamps to stop the sections from turning but then the sections wont open. The worn part is directly beneath the clamp. Due to more use when the pole is fully closed.
I know Alex sells the High Acrylic Adhesive to fix the clamps back on, can't see the same clamps on his site but know doubt he will have some. Just thought if you can take the old clamp off, spin the section round and replace the clamp this would do the trick.
Wayne