When I bought my first S2+ Desert Tan I made some measurements and weighting and stuff. Some of them are in this page:
About the metal button (not switch, as the switch are eventually the same, specially because Biscott firmware doesnât work well with the lighted switches) the black one is less transparent than the bare metal one!
They are both more âsilentâ than the rubber tailcap.
Unfortunately, the metal button doesnât allow using a regular forward clicky switch on a PCB because it is taller than the reverse clicky switches. It is probably the only bummer about is :weary: