Trying to keep up. So in the early days of CF SxS's..before rebounding hammers and such...the firing pins were just floating in their cylinders?
Yes. The beveled edge you see on extractors and ejectors, and the little concave "cutout" you see on some, are there to assist in pushing the nose of the striker rearward as the breech end of the barrels move downwards in closing, or opening in the case of the little half circle cutout, so as not to hang the bottom/top of the same on the nose of a projecting striker. Also, sometimes a gun may get hard to open due to the strikers remaining in the indentations of the shell primers, and not moving rearward as the gun is beginning to open.
https://www.hallowellco.com/ejectors_and_extractors.htm
