It takes closer to 8 hours without too many stops. Boring ass drive though, not much to see. Also if you go during November or December watch out for horrendous fog in the central valley. Been times I have been driving and you couldn't go more than 20mph because of it.
Many, many times. Takes me a little over 9 hours including stops for meals, gas and rest areas. Interstate 5 and 15, I'll average between 80-85 mph. Nothing to see really as Wild Bill has said, but I like it that way. All speed and gets me there relatively fresh. I stop every 1 and 1/2 and the wife takes over as we switch shifts. Works out well. Next trip probably April/May.