Hazy memory, but ISTR that initially it was planned for the 2 senior entries (87 & 88 I guess) at the Towers to route line -certainly 88 was sprung because we were allegedly behind the line on the flying training programme - by the end of the year several of us were off flying for 2 or 3 months because we had completed the course early, and had to go Manby to "refresh" prior to Valley!