hi christopher
i buy like a big box of expired or soon to be expired film and dump it into a bigger box, with more of the same.
i stick my hand in the box and pull out a roll and put it in the camera. i put the camera at IDK f4 or 5.6 or wide open
depending on the day and situation, and the shutter anywhere between 1/15S-1/125S depending... and i just push the button, if it is a box camera i just load it and shoot.
i don't differentiate between film stocks and iso's. i just put the film in and use it.
when i process it, i develop it all at the same ( color or b/w ) time for about 10 minutes split between 5+5 caffenol c and whatever print developer i have lying around
i haven't exposed film in over a year now and have between IDK 10-25 rolls to develop from 2019. year and 1/2 should give me enough distance to have fresh eyes
when i look at the negatives... can't wait because i processed about 20 rolls the last run i did, and didn't see the stuff i wanted to see