Ah, I see what you mean. The pointer hack should fix that issue as well. I'll give it my best shot. Deleting the last message would probably work but I think you'd have to do it each time you saved which would be annoying.
On another topic, I was messing with the equipment and when I extended the "shield" range and created new off-hand armors, the extra ones seem to mess up the character's attack stats. Can anyone else confirm this? If so I suspect there's some kind of check being made that the left hand equipment is indeed a shield to prevent it from being factored into the attack and hit calculations, which FF4kster neglects to write to when the range is changed...
Uploaded the fix to the message range for the last map. Let me know if there are any further issues. I'll update again once I implement the inserting/deleting functionality.
And done! Inserting and deleting messages from Bank 2 should work now.
Now this is an odd phenomenon... Yes, items outside of Shields are turned into Shields they effect attack. If you have nothing but the shield equipped it will add the Shield's Defense to Attack instead. But! When it is added to a weapon with power suddenly the effect of the Shield's Attack stats changes to... much higher... and goes up by one for each "shield" this power upgrade starts at 32 with the Iron Helm. In addition it lowers the accuracy of any given weapon by 50%! Now that is definitely bizarre... but there's a lot of special coding involved with this that I'm wondering if it isn't some beta element that they hid by forcing the search to later in the list.
Now what corresponds a 32 (20 in Hex) and above to these other items? Their internal Hex numbers are already much higher than that. This might actually involve a bit of code digging to figure out this anomaly...
Hmm... I unfortunately can't find anything in particular that deals with this issue. In theory it would be a "CMP 6D" but I don't believe such a check exists because the game assumes you would only be equipping shields from thereon out. Why this effects stats in this peculiar manner, that I cannot say. This... might sound crazy, but perhaps those "unused bits" that corresponds to armor type, maybe that will have something to do with it?

Ah, I figured out how it's calculated...
It takes the base attack of the character and adds the Helmet's Defense to their Attack. Thereby it was going up by 1's because that's how the Helmets are set up. So in essence anything past a Shield's defenses becomes a weapon with a -50% Attack Penalty as far as the game is concerned.
Oh, yes... that explains it... It's now Read as a weapon, in a complete sense. The Evasion becomes Accuracy (hence why it seemed it was negative accuracy), the Defense becomes Attack, But that seems to be it, you can't cast Spells with them (likely because out of Index as that Index would then read Shield Magics as their Magic Evasion) and they have no graphics, as one would expect.
Is this intended behavior? It's rather difficult to say. That it seems so complete seems to hint that it is, but at the same time it's just the Weapon Statistics over Armor.
Unfortunately I have not located where this additional CMP would be that would search it for Shields...
Or maybe I found it already?
03F36B in LoRom/HiRom (best to use WindHex for finding this) there is still a CMP of 6D when it should read the newly changed range, so you can equip new "shields" in battle.