with regard to suggested improvements in the safety of this gun, I believe that PeterM hit it on the head. What is being discussed is design change and change test and validation work then being put into production. This is a signficant scope expansion over the current goal of reproducing a validated design using better/more modern materials and processes.
Chuck mentioned risk management, I too make a living running technical projects and am constantly looking for risk and mitigation strategies (I worry a lot...but it seems to work since 99% of the stuff I worry about never happens :-).
In my view, a design change of the safety aspects of the action is not consistent with the principal goal of reproducing in modern metal a proven and beloved vintage arm and hence the added risk is not justified on a project which already has significant risk associated with its primary objectives.
