Logic has a strange habit of changing the pan on tracks whose panning configuration I haven’t touched. Seems to be a bug with their automation interface. I found a way to correct it, but it would be nice if it didn’t happen in the first place.
I removed the track-doubling from the previous iteration because it sounded too muddy. I replaced it with twin vocoder tracks an octave apart which mingle with the melodic track of the final section. I also reduced the distortion on the final melodic section and added some subtle feedback effects to other tracks.