Some issues seem to pre-date the move
Well, I had the dubious privilege of taking BA738 home to Geneva last night from T5, having done the same thing a week ago from T4. Last night we left close to 2 hours late, with no hold baggage. A week ago, we were told tha the catering vans were not able to clear BAA security and that there would therefore be no catering on our flight. We were told that had been happening for most of the day. That was March 19th.