Well I went to T&T & checked loads & right now the 3 flights before mine are looking pretty open, so I may go for the 7:51 instead, especially since my waitlist hasn't cleared on my current outbound.
Normally I would never worry about this stuff figuring 2 hours for connection is plenty of time, but for some reason I'm just hinky about this trip. The last few times I've transited through SFO flights were always on time, but of course this would be the time it's not LOL...
Transiting through LHR isn't adding to my sense of calm given they're talking anywhere from 50-90 minutes to transit through FCC & that cuts it close on those connections.
Cheers.