RE: Segway... What happens when you're barrelling along at 12mph and hit a decent positive going edge (e.g. raised sidewalk tile), and the rider/control stalk tilt forward aggressively... the inertial compensation loop must be pretty good otherwise the rider would be flung off backwards at a great rate of mph (certainly greater than 12mph, as the compensation curve (spike) must occur at several orders of magnitude to the actual forward ground speed)... Any suggestions - or does it just give up and let you fall flat on your face ? -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.