I actually found an alternative that keeps my lax-nrt flight, leaving SF at the original departure time: sfo-sbp-lax gets me there in time for the NH flight. It's a 34" connection in SBP, but as far as I can tell it's the same aircraft continuing to LAX. I'm mainly worried that 95" in LAX will be a bit tight, and I don't want my suitcase accidentally left in SBP (I'm guessing connections there aren't common), so I'll wait a bit longer before requesting a change.