I have three sets of WD Klusons, two with the off white buttons that I used on my acoustics and a set of double ring single line for my R0, IMO they are as good as the Gotoh Gibson uses but more historically accurate.
Where did you get the double ring buttons, and are they "transparent?" (That is, clear enough to see the screw, or mostly opaque?)
I wonder if these can go on Kluson Revolutions? Those have screw ends, but I don't like how clear they are, and I love the double ring look...