I could be mistaken, since I don't ride a full-on sportbike and I'm old and slow, but I don't think _anybody_ exceeds 90 mph on the South Grade of Palomar. If you haven't been there, think Passo di Stelvio (we've all seen the pics in the mags, right?), with much shorter straights between the switchbacks, and heavy brush and woods. And the residences are all at the top. There are some residences and ranches along the East Grade, however. And the locals at the top have to drive these roads to get to darn near anything. They're great, fun roads, suffering from too much popularity and inexperienced riders.I think the easiest solution is to simply arrest everyone who exceeds 90mph on this road. Before long there won't be a problem any more.