I answered elsewhere but I’ll mention it here for the sake of public knowledge.
Any seed borne of a herm plant (generic herm) will also carry a genetic predisposition to herm. I wouldn’t save it for Breeding personally.
Agreed. It would lead to more herm plants in future so if you’re looking to do strain crosses, not best stuff. However, I have also picked pollen sacks off plants and grown the bud. I also did not care too much if there were seeds in it. I got a lot of seeds and some not-too-bad herb.