Hi Max,
In FCOM 3.01.28 "Minimum Fuel Quantity for TakeOff : 1,500 Kgs provided Wing Tk Lo Lvl warning must not be displayed on ECAM for takeoff." (Presumably this restriction is to prevent the ECAM ding before T.O. Inhibit.)
So if it's certified for 1500 kgs on Take Off - what's the difference in pitch during a G.A.?
Surely a balanced turn with 30 degs bank will have no effect - because the fuel will only sense an increase in g and still lie in the same position in the tank?
As for the minimum fuel before one of the main tank fuel pumps uncover - I don't know. But I thought the other pump's inlet should remain covered until the fuel was exhausted - else it would be described as unuseable fuel.