I am using SOKP latest.
I don't for the life of me understand the way the AOSP roms I've used handle their storage. It's like they throw folders all over the place. I check both internal and external and just about every app puts folders on both as well as the root/data directory. It's so messy after doing a full clean install, installing apps, and trying to find where each app puts it's data. And the most frustrating thing is some apps suddenly change default directory and start storing data somewhere new! Keepsafe, for instance, put folders on both sd's and when I moved my backup keepsafe folder to the internal folder THAT IT JUST MADE, it didn't see them like it normally would in TW and instead switched to external and rebuilt a new file system there. When I moved the backups to the new one, it said "nope" and picked yet an entirely new location, which I can't find anywhere...
TL/DR: I want my AOSP rom to handle app data storage the same way it does in TW. I want apps to build their directories on the internal and not external.