Ah, I see. I decided just to give it a shot and see if any important addresses had changed for save editing, and it seems like it went okay, for the most part.
The save editor does seem to work. I tried it and kept a backup of my save by keeping the original dumped from Saviine, and the game loaded my save just fine with the edited weapons that I made (I got sick and tired of trying to get a 5* 8 slot Summoning Gate, lol). There's nothing in the editor for Toon Link's Sand Rod or Toon Zelda's... whatever she had, I don't remember, but everything else in the editor still works even if it doesn't get updated. For anything else, Remix probably has it covered on the last page, though.
And thus ends my address to other dumbasses like myself, lol. Thanks, good sir.