Wha-What? You mean to say that Section 19/64 is not Outside of Baron? But I switched that and saw my formations appearing... hmm... Now I am very confused, for whatever reason my 35/64 was Index 1 which should have been the Outside of Baron. I don't recall changing it... but true to form when I changed it to 0 those odd Kaipo Desert encounters stopped. Now I wonder... is 19 at all connected to Baron?
Like I said, I have no idea which is which, I was just going by what the default encounter sets appeared to be, which for me, 19 was appearing as monster set 1, whereas 35 was the first 0 I encountered in the list. Perhaps it bears further testing, maybe starting with a clean rom just in case you had made any other changes.
You were 100% right on the Peer issue, I had thought because it bugged out as just a normal AI, it would bug out as a reaction but that is not the case. It works Flawlessly as a reaction, even only going through the motions once rather than repeating. Good thinking there.

Thanks, glad to hear it worked! Also depending on who you give it to and what period of the game they're in your party for, you may only have to put it on to a small subset of the monsters. Like for example, supposing the plot was otherwise left alone, say you gave it to Edward. Now you only have to change the monsters that Edward can possibly encounter. Now that I think about it that would actually be a neat ability for him. Rydia has the black magic to take advantage of the fire/ice/bolt weaknesses, and Cecil can take advantage of the Dark weakness. Once you pick up Rosa, she (or heck even Edward himself can put on a bow) can take advantage of air weakness... and the holy arrows for holy weakness. I think that covers all of them!
Good work on the fixes. I'll keep an eye out for anything else that may pop up.
Thanks! I think I'll actually write out an itemized list of everything that needs to be done (not on the forum, just locally) and make an updated wish-list for things that I still don't know how to edit but would like to.