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[VAC] Re: Grade %

I'm pretty sure it means elevation as a a per cent of distance traveled.
That is, if the change in elevation is 7 feet over a distance driven of 100
feet, then it's a 7% grade.

I'm not sure if it's measured as per cent of the actual distance traveled
(measured on the hypotenuse), or of the horizontal, or level, distance
(slightly less than the odometer distance).

Don