...After some testing... I'm forced to conclude you're right, actually. So I guess the .sav's I'd been using previously still exist, but hidden in some deep, arcane corner of Windows that I may never be able to reach.
They might be in C:\ProgramData somewhere.
...You sir, are a miracle worker. It wasn't in programdata, but it *WAS* in User>(usernamegoeshere)>Appdata.
Found 'em! Thanks a bunch!
EDIT: Never have I been more relieved to have done something stupid. I did a dumb, not a crazy!