Just did an awesome workshop in NYC with MONO NO AWARE where through the magic of cross processing, we got color reversal from 500T!
There's a small amount of info online about it but essentially we shot 500T rolls on Super 8 cameras that only meter up to 160T and without the daylight filter engaged, shot the film. So basically exposing it about 1 2/3 stop over what it normally should be. Apparently this is necessary to get the right exposure for this unorthodox method. Then we developed the film in a LOMO tank with a Tetenal E6 kit and some adjusted times. Then once it was developed, we put the film in a tray with some fresh water and photoflow and using a sponge, gently scrubbed the film to remove the remjet backing. Then dried it and projected it!
The film ends up with yellow highlights and blue shadows but it looks pretty solid! In actual projection, it looks better because your mind tends to disregard the bizarre colors especially given the yellow hue of most projectors bulbs anyways.
So check it out! It's fun to know there is a way to get color reversal other than the Agfachrome 200D and hopefully the Film Ferrania whenever that materializes.
Also that's yours truly at 9:05.