Spent a bit more time trimming armrest core and offered it up to the left to compare. Was startled to discover the right map pocket is 1.25" further forward compared to the left. WTF??? I had put it on the marks I made when I did the left, and didn't recheck. Mmmmmmmmm. Applied a bit of heat and pulled off the Map Pocket and Rudder cable conduit conduit, clean them up a bit, and refit conduit with urethane bond, clamped with cleco.
Cut out remaining armrest transition piece and assemble with urethane bond in place. After a break popped it off and trimmed the inside of the transition piece with burr bit in air die grinder.
Refitted the map pocket in such a position so it matches the left.