BEagle - That's fine so long as you confine yourself to PPL work. The CAA will not allow foggles to be used on the CPL Skill Test or the IR Skill Test, only screens.
However, this is another red herring since the screens were already down and, at the time of the incident, the visual circuit was not particularly busy (by Oxford standards).
What about the premise, enshrined in MATS Pt 1, that instrument traffic has priority over visual traffic irrespective of their relative positions in the circuit area?