Switching Ending Scenes

I switched the values at C3/C4BA and C3/C4F6 only, but it switches the names as well.

Yeah I thought it could be an easy swap but it seems each scene is tied to the other by the actor ID..

Also, a related question - is it possible to change the small text names in the scenes? In my hack the ponies go by nicknames since their full names are usually too long, but if the small text can be changed to accomodate the full names, that'd be cool.

You mean the "TERRA" in "TERRA as Terra Branford"? Those names are fetched from memory, you can't change them unless you hardcode new ones in the ROM and display those instead of the game name.