the T&C's state that:

8.3.1 Travel on any eligible flight marketed by British Airways, American Airlines or Iberia will earn tier points based on the eligible spend (base fare and carrier imposed charges).

So I have a trip coming up that is a) BA ticketed b) A mixture of BA, QF and QR metal and c) I am on BA flight numbers on all segments.

I am reading this to mean that the tier points will be calculated on spend on all legs not just those on BA metal - is that correct?