Low MACTOW on TO. Below 27% on 320.

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HazleNuts39
From Airbus weight and balence document.
when determining the aircraft takeoff performance (TOW, TOD), the calculation is always performed at the most forward-certified CG position. Therefore, for aircraft having a naturally aft CG position (tail heavy aircraft), everyday operations might be penalized using this very forward value.
The A320 and the A340 usually have a DOW CG of around 30%MAC and their most forward certified CG limit is around 17%MAC.These


“tail-heavy” aircraft usually have an aft takeoff CG position. This means that their everyday performance is better than the certified performance for the most forward CG position.
So a second CG position forward limit has been certified for these two aircraft.

at 25%MAC for the A320 at 26%MAC for the A340.

All takeoff performances in the certified Airplane Flight Manual are given for both these CG positions.