Thanks both for the quick responses.

I am flying LHR-PHL-SFO.

LHR-PHL Business (I)
PHL-SFO Listed by TA as Business (P), but I assume First

I expect 140 + 210 TPs, yes?

The odd thing is when I looked at BA's Avios calculator, it flags an error when I select US Airways Business for LHR-PHL, but shows 210TP if I select First. Something not right there.