Have just been asked to settle and arguement regarding the setting of a mizzen staysail. Does the foot attach to the downwind side of the boat or the upwind side. I have never seen one used so have no idea.
Weather rail, at or near the shroud plate. You need good airflow round the front of the mizzen staysail and not choke off the mainsail. Its a light air sail, so you need all the space you can get.