i am forever constantly adjusting the sl-x clamps on my pole, and just when i think it is perfect, when i go to extend it, the section sticks, then i have to loosen it of, a real pain sometimes, especialy when your extending to 30ft, i am starting to think, hot weather affects the clamps, on cool days the clamps are fine, anyone else get this with their clamps, do i need to oil them or something