Winter blade information

[Hocrest]

Well last night I discovered something interesting that happens when using the "Winter" wiper blades that are covered with the rubber sleeve.
Now, I know that they are not really good in high speed driving, and tend to get "light on the windshield" at speeds over 50 mph.

Last night I learned that somewhere over 70mph (and below 140mph) a winter blade in the rear will completely lift up into the "vertical" position and just stay there, twisting back and forth like a Princess's "Parade" wave.

[Earthworm]

In that case adding some helper springs would solve that problem.