All poles and clamps will wear over time, gardiners clamps have great clamps with plenty of wear space.
When the pole and clamp is new there is spare, as the clamp and pole wear the gap will close until it is at max and the pole will slide and spin. Gardiner do have upgrade kits for pole clamps that give longer life to the pole.
I am looking at this at the moment, I want to know if the replacement clamps are simply new clamps or whether they have a narrower diameter to allow for pole wear as well as clamp wear.
gardiner poles are the mutts.