Care to show me where it says you have to be in a control seat to be PIC ? as far as I am aware, you can be PIC on the jump seat, on the throne, or in the bunk.
Sure.
We're talking about flight tests, so the
Flight Examiner Handbook at 18.2.2 is instructive. Bottom of page 188.
CASA don't permit their delegates to the be PIC unless in a control seat, and this was stipulated in previous versions of the FEH. Now that examiners are exercising the privileges of their rating the wording has changed slightly, but the use of the word 'should' in the FEH indicates a strong obligation.
The requirement to log dual for flight tests has disappeared from the current FEH, a step forward.
ICUS if you're licensed, dual if not. AOTW has it...