During my time in Basic in the mid-1990’s, the Drill Sergeants were very scrupulous about not trampling on religious rights. They’d overturn your bed, throw your locker down, make you do front-back-goes in a sand pit for 2-3 hours, but they never went after someone for their religious beliefs.
Same here, did basic in 1990 and the DI’s never went after religion or race. Although I have never seen a stress card, I have heard a lot about them. Do they even have stress cards still? If they do, the recruit could always throw up his stress card I suppose. Not really sure though as I have never seen them in action.