There was a recruitment ban which lasted several years in the early noughties too. NAPS was closed to new BA employees sometime in 2003 and the ban had already been in place for a significant period of time at that point. I remember the BALPA mantra was that they could not legally do anything until the first pilot was recruited without a NAPS pension. I think it was several years until that actually happened, by which time it seems the membership had got used to the idea, and voted to accept BARP for new pilots. I cannot remember how long the recruitment ban lasted, but I would guess close to five years?