Can anyone recommend how to stop the annoying wiper chatter that always seems to develop. I usually get the Duralast wipers from Auto-Zone, and clean the whole windshield first with glass cleaner and then with alchol and paper towels. Then I clean the new blades with the alchol wipe included in the package. Does the sun age them that quickly so that that become hard and noisy in less than 6 months? Maybe another brand would be quieter? From what I can tell, there is no film on the glass because I see no streaking whatsoever, even driving at night in the rain, but just that annoying chatter is there. I have 2 different vehicles doing the same thing. I heard WD40 may work on the blade rubber, but felt leary about putting something oily there for night driving. They still look new. Thanks for any tips