No wear as yet - personally clamps feel better than gardiners
The thing with wear is, it comes down to how you use a pole, some are more heavy handed than others, the style that clean or hold the pole - unless there are masses of complaints you have to use your own judgement - after all slx poles have had wear issues - clamp problems in the past and Alex made great strides to improve these areas
But if you listened to a couple of videos you'd never buy an slx
Darran