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My car's wiper blade arms have fins on them - I think so that the blades press harder against the window and don't skip. It's nice that they don't skip, but I notice that the blades move up the window a lot faster than they move down it.
I'm pretty sure these are OEM blades. Are the blades meant to catch air? Snow? something else? I wonder if the wipers would move more symmetrically up and down with different arms.
Does anyone with wiper arms without fins have experience with arms with fins?
Happy Bricking
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