Have to be honest I don't understand the point of using it. I used it when it was first recommended but have to say found no apparent benefit to it at all, not that I could tell anyway.
My poles never worked any better when I used it. It didn't stop grit getting in the pole and embedding itself in the stop tape when the hose was wet. It didn't make it so I can take my pole apart and clean it any less often. So I don't use it anymore. I just clean my poles regularly and they work just fine. This is my experience anyway