I did that trip once in June. I used the Kirkendall-Spring book: http://www.amazon.com/Bicycling-Paci...0389600&sr=8-1 but it's basically the same as the Adventure Cycling route. The wind is annoying but if you can accept that you have to go a little slower, it's not so bad for a few days. Leaving early (ie, at dawn) helps.

I would take Amtrak to Santa Barbara or SLO though. It will probably take you all 7 days to cover 475 miles.