OK, I was going to content myself with just posting one photo, but now you've started talking about redscaling, so I am compelled to post again. You all drove me to this....
Anyway, in a fit of boredom, I acted on the impulse to redscale some Fuji Superia 200 and run it through my Olympus 35 SP. Based on past experiences and some (inconclusive) things I read online, I decided to really blow it out to try to burn through the mask and see if I could get some actual colors out of it. I settled on five stops over as my baseline, and adjusted exposures from there.
The results were interesting. Some shots had a mild warm tint, like this one:
Others had little trace of red, instead looking faded and color-shifted, but showing no indication that they were shot on redscaled film.
It seems some films require a lot of light to blow through the mask, while others can get by with considerably less. Five stops might have been a bit much; I'll try four next time. I realize this probably has virtually zero relevance for the expired slide film y'all were talking about, but this is the internet - threads shouldn't go on this long without pointless tangentialization.