Anybody build their own 5th wheel?

[ptimmerm at mashtun.JPL.NASA.GOV]

I have sent away for an electronic fifth wheel.
Sort of anyhow.  This unit, G-Tek Pro for $139
has micro accelerometers.  Program in weight and
it gives 0-60 acceleration times, 60-0, 1/4 miles,
instantaneous horsepower at rear (front, all) wheels,
and lateral acceleration.  I can report how well it
works in a couple of weeks.

paul timmerman