Confiture,
170 kts, 30 Flex, Flap3 should about do it for 363.
A heavy A340 pretty much always takes off in Flap 3, flag number 1.
Flex 74 is max flex i.e. light weight data, flag number 2.
Rotate and Green Dot way out of the gross error range, flag number 3.
I guess a problem the industry faces is that operations have come so routine. When I am sitting on a 340 with the other guy flying at heavy weight and call rotate nothing much happens initially because the jet is so heavy, going so quick and has so much inertia. I still find that startling, many of our colleagues do not and we have to shake the complacency that comes with our routine operations and look for trouble.