angelwings thanks for the response.
I arrived at 0530 for the 0640 (usually get there on the dot a 0610). 15 mins to do the bag drop
, 15 more mins in the queue through the 'BA' control in T3. Shoes, belt, etc. at the scanner - just like being in the good old USA.
Made it to the lounge with plenty to spare. Boarding began around 0610. Departed on time but with a low load factor for a Monday AM flight.
So, 30 mins extra, at 0530 would be prudent. I counted that from the point of arrival at the BMI bag drop area, to sitting in my seat I had made contact with 10 'officials'. Is this a record?
Back to LHR this PM for the return. That will be fun.