For me, the 15 mins once a month it takes to dismantle, push a ball of wet wipes through each section with a garden cane, , spray with dry ptfe, stick a single layer of electric tape at the base of each internal section (this is the weak part of the section that can start to splinter) is worth it. The cost of the nano and even more so with the extreme makes it worth the time imo, never did it with the clx, but these things arnt cheap,and I don't part with my money easily. You can feel the difference once youve done it, it moves much easier, and the spray defiantly helps regards getting black hands. If Gardiners and xline reckon it helps then I'm happy with that. You don't have to be anal about it like I am and religiously do it come the end of the month, we must all have 15mins during the month when the weathers too bad to work, just do it then. The amount of crud that comes out on the wipes, especially in winter is a bit of an eye opener, it can't be doing the pole any good keeping it in there.