Hairyclam
Yes, in the good old days most 1st pilots flew the Nimrod display sequence once they were ratified by the Staish and the AOC.
However, following the accident, stricter authorisation and supervision rules were introduced by nominating sponsors and mentors plus mandatory practise and ratification when there is a break in display flying of more than 7 days.
It was decided that the safest option was to have only one nominated flight deck for the season - ideally the most experienced.
Like it or not, this was designated to the OCU because syndicates were less prone to disruption and therefore could remain constituted for the whole of the season - Sqn crews don't have this flexibility
Pilot being a QFI - Master Green - B Cat etc
Co-pilot usually a B Cat with a Green rating
Eng also a B cat instructor with plenty of hours and experience
Unfortunately, a lot of Sqn crews dipped out on some very nice display jollies. However, I'm sure you'll agree, the last thing anyone wants - particularly a Staish or AOC - is to lose an aircraft and crew for any reason
Love many, Trust afew, Always paddle your own canoe