Throw me a bone here. I have tightened the yoke thingee under the bus a
few times but never seem to make a huge difference.  Is there more to
it?  Last summer i was camping in Glacier National Park and my bus was
parked on a very slight incline and started to roll back.  Lucky for me
there was my muddy hiking boot under the bus behind the front passangers'
tire to stop it before i got to the brake.

Cheers
Matthew, from the backwoods cabin in Northern Idaho...
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Matthew Pollard             http://www.uidaho.edu/~poll7356
Dept. of Chemistry               http://www.chem.uidaho.edu
University of Idaho                   http://www.uidaho.edu