I really can't remember what was going on at the time. I know that BASSA were fervently anti-midfleet and told all of us that wanted to do it that they would 'wash their hands of us' if we were stupid enough to transfer against their advice. (The subsequent grounding of the 767 fleet and the 1st gulf war was apparently evidence that they were right all along!) For sure there was no IA going on at the time though.
I remember this too.
BASSA was extremely against Midfleet and didn't want to represent any crew going over to this fleet, not until they realised crew were getting promoted fairly quickly on it!