Pool! Spot on.
In an earlier post I mentioned the 767 that had ZFW instead of TOW in the TODC.
After that they introduced a feature that compared the TOW with the flight number. If the numbers were not in accordance with a set parameter you had to recheck and confirm the numbers.
When the A340 entered service they opted not to have this. Ended with an "EK407" in PVG 2005.
Until I have a better system I do my own check. I check the TOW at the briefing and calculate the expected V2. If the FMC calculated one differs I investigate. Many pilots use this but it is not learned during training. Wonder why? Would be very useful for new crewmembers.