I just lubed and swapped the tops of some black inks pretty recently, and the main thing is that the loose leaf makes lubing even more of a pain since you have to carefully put it back into place if it gets lifted slightly, or sometimes out of the switch altogether.
They’re a really cool switch outside of having to worry about that while lubing. I’ve been wanting to buy more of them but if there’s some sort of fix in the works for the leaves, I can hold off on them until it’s fixed.