Well the good news is that after several days my C4U is back to it's former glory (for the want of a better term!).
The official rubik's silicone liquid that I've used to lube it has certainly removed some of that clicky feel in a fresh C4U Speed cube, but it's definitely silky now and moves very nicely - probably about 95% of how it did out of the box. I probably have to tighten it a touch more to get rid of the very slight poppyness it still has, but otherwise it's holding up pretty well.
whew!
The official rubik's silicone liquid that I've used to lube it has certainly removed some of that clicky feel in a fresh C4U Speed cube, but it's definitely silky now and moves very nicely - probably about 95% of how it did out of the box. I probably have to tighten it a touch more to get rid of the very slight poppyness it still has, but otherwise it's holding up pretty well.
whew!