Good going, eastwest! Glad you had such a memorable flight.
I thought I was lucky to have been invited to the cockpit twice in a row (including landing each time) on BA back in 1995: 757 IST-LHR and 747-100 LHR-ORD but your 7.5 hour ride - including takeoff, which is what I'd love to experience from the cockpit, blows me out of the water.
Congratulations!