Quote:
Originally Posted by MPaulHolmes
Large resistance would be read as zero. So, if there are places where the wiper loses contact for an instant it would constitute a moment of zero throttle. It would race to zero, only to turn around and head back once contact was made again. That would make for a jerky ride.
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That's my theory of what is happening. I think the wiper float times are short enough that momentum keeps them from being too jerky.