rto
Many years ago this subject was debated by the Flight Operation section of the Flight Safety Foundation in Zurich. At lunch I sat next to the VP Ops of Swissair, so I asked him about their philosophy re a copilot rejecting a take off. It is not a problem with us he explained to the listening people "Swissair do not allow a copilot to conduct a take off". Stunned silence at the table, all too polite to comment !