the yellow box 31 series Anco's are not the best quality.
I know this because every rainy season I get to endure through wiper blade season and as cheap as they are, they are not worth the money.
Reason being. the blade itself stands taller, like 2mm taller.
doesn't seem like much vs. a lower profile blade, however as the blade sits against the windshield not moving, you have that extra curve being bent into the rubber blade, and when you goto use them, the curve is locked into place and won't actually sweep water like it's supposed to.
Also the plastic yellow box frame is a cheap quality plastic, and they are refillable, however I refuse to sell refills for them and tell each person who asks they are NOT and make them buy trico's or blue box anco's, which are easily refillable.
the rubber for the yellow's doesn't hold up to the sun as well as the other lower profile blades do.
I would love to hash it out with consumer reports, which again proves to me they are biased and know little to nothing about what really is good and bad.
I also don't recommend the michelin blades either, solely because trico doesn't have a refill that will fit in their proprietary slot, nor does anco. At least none that I've found.
Also the wiper chatter you're experiencing, is almost always NOT from the wiper blade itself.
It's usually road grime on the windshield.
It's the dust & debris that the windshield gets hit with as you go down the road.
Usually it doesn't come off when you wash your car, at least not all of it.
you can use a windshield polish to remove it, colgate WHITE toothpaste, vinegar & water can break it down too.