EYXW. The one light payment may seem insane but the point of the payment is not to reward crew, but to ensure correct and agreed crew levels on flights. The problem with BA, as with other large UK companies - so it seems, is that if they can get away with less than agreed they will. Without the payment clause it is not unreasonable to expect BA to start routinely under-rostering flights to save cash. In previous employment it was routine to under-roster flights because the payment/fine to crew was far less than employing another crew member and thus it was cost effect, though not passenger friendly, to do so.