Hey Gang! I may have missed if someone else has already mentioned this, but that screen shot in post #584 made me see this just now...
View attachment 805391<--- CLICK ME FOR AN ANIMATED GIF!
That's clearly different from the Black Button on the LUKE ROTJ HERO, and also different from the "White Glove" Luke's TLJ Lightsaber's Black Button which looks more like the LUKE ROTJ HERO's Black Button with a center line crease right down the middle of it.
EDIT: O.K. apparently GIF's don't work here? How about just the end image then and you guys can just open both images in new windows and click back and forth between them...
View attachment 805388