I've done it a few times, all early weekend mornings, all the way from Elsinore to SJC.

The climb sorta reminds me of 330 on Ride Around the Bear, the switchbacks slow the cars down a bit.

The first part of the downhill towards SJC is steep enough that you're almost going the speed of traffic. But as it gets less steep further down, you still have to be out in the middle of the lane, even though you're going slower. I used my glasses mounted mirror to scan back and then move over at a straightaway, wider spot, or a turnout in order to let traffic pass. If you're not out in the lane and stay close to the right edge the whole time, you'll get passed really closely and you'll run into trouble with debris and other stuff on the right edge.

I never felt in any danger, but I certainly wouldn't do that ride without a mirror to help with the turnouts. I thought the wilder sport bikers were more of a danger to themselves than to me. Even so, if I were to put my bike in the car and drive out to the base of a climb to do some riding, there's many other roads I would probably choose first.

BTW, I know that a shoulder widening project in is in the works. The construction was supposed to start by now, is that the case?