Something else left to do actually - the lightsaber hum sound after Luke has already deactivated his saber in Sparky’s Third Flashback VFX shot.
This is a change that I really want to be in there, because I think it makes a massive difference - but if I can’t remove the hum, it won’t work. The lightsaber hum sound is on the same channel as Luke’s dialogue, and after my best attempts, I have to concede that I lack the technical tools to do any more.