These issues usually only affect poles when they are getting 'on a bit'. In my email to Darran, I did mention that one way to help prevent this ever happening is to put just a drop of lubricating oil (such as 3in1) on the cam bed of the clamp body (make sure none gets on the pole section surface). This will help prevent wear from the dirt and grit that can get between the clamp cam and body. It will also make operating the clamps as smooth as possible.