FDR lots of numbers and "facts" but DERATE and FLEX are TOTALLY different in the Airbus. Where on earth do you get this
If you are on all donks, then you are expected to be at 35' at 87% of the TODA
. Having flown various versions of the A340, hot heavy etc the end of the runway can be very close. V1 decision allows for 2 seconds not 1, and V1 is a long way behind the aircraft.