Just upload saves from the legal version then. I could load one of my friend using retail version. Probably someone will make a save game decoder like for Assassin's Creed. I don't really know, CoSMOSd myself credits and finished with no other cheats.
Even if someone did manage to make a save game decoder, the scheme used might get changed in a patch or something to make it obsolete, mostly because there is money at stake. Unfortunate that my save will not work with anyone else's game.
i really wanna give your save a try myself
learn to quit while ur ahead, also take not of pwiz's post about it not working