Manorexic, I have't had a MF AD yet but I have been for LGW crew and Cargo interviews with BA. At both I was told it would be 5 days. I got the "no thanks" email for LGW 10 days later and a "yes" email for Cargo 12 days later. I think it really is random. I've heard from others on MF that some got a call offering the job after 1 day and others waited 2 weeks.