@rhitwick I think I have a suggestion for u. Instead of using the ring mod, you can instead just save ur savegame in another location, and recopy the savegame location in "documents/NBGI".
This would load up the earlier save, with the old amount of sould. Doing that would -:
a. Provide u a more legit way to play the game, and remove the chances of savegame corruption.
b. U will make backup of ur savegames which is absolutely important.
c. Force you to not cheat in the game that much as you will have to reload the game to regain old amount of souls. It would prevent cheating without a reason, and you will have to provide a good reason of reloading the save (to urself),
tl:dr Instead of using the ring mod, instead use the idea of save scrubbing to ur advantage, imo it would be a better experience.