I no longer live in the Bay aea, but I remember those winds. It's a personal choice - I hate windshields but I live in the desert now and it's not a big issue. I think there's buffeting both ways, just different. Most cruiser windshields cause more focal head buffeting off the top - at least that's been my experience - which annoys me more than chest blast. And I don't like the updraft from beneath or the backdraft from behind. The whole dynamic is poor in regards to bike handling. Having said that, I think windshields are great in the rain which is a pretty big consideration if you're not in the drier East Bay. And when the temperature drops they're pretty comfy. Probably worth the investment if you get one that pops on and off quickly. Then you can use it as needed.