I have tried every brand of wiper blade under the sun with the exception of the Bosch Icon to stop my wipers from the unbearable chatter and somewhat less of a problem skipping.I am starting to think it may be the washer fluid i'm using. The orange colored Rain X.I don't recall it being an issue before i started using it. I have tried cleaning the blades with vinegar,2propanol,and simple green at different times. Any suggestions would be welcome.