Not sure about P2 Pobjoy,my 'D' Cat and 'P1' ratings were done locally,maybe P2 could be awarded either way - perhaps by an 'A' Cat on a GS ? I think only the Boss was an A1 Cat on 613 at that time.
I agree that classroom time was rare - perhaps a bit during bad weather days ?
Somebody must have told me about the '45 deg rule'