Alright - I tried the lubing procedure I mentioned above on the Silent Box Browns, and I got a very different result than I anticipated - but hey - that’s why we experiment.
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Lubing the rails, inside the box, and donut dipping the springs made the switch noticeably more smooth - but the biggest change to the sound profile is the absence of spring resonance.
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Doing the above plus the part of the pusher outside the box as well as the tactile cam on the stem made a pretty significant change: The switch feels even more smooth and with a more clean sound - BUT - lubing those components actually appears to have encouraged the notorious Box clicking. In addition, there’s the predictable change of reducing the tactile weight. The tactile event is less heavy, but more sharp - I think it’s because the plastic parts don’t drag on each-other as much.
So - for someone looking for a big, round bump that feels like a good quality capacitive dome, I would not recommend lubing the tactile components in SBB’s (though I do recommend trying stock ones / lubed only on the rails and spring).
However - for someone interested in a crisp tactile click with a much more muted sound presence and a less harsh bottom-out, these might be worth serious consideration.
They’re definitely audible, but seem practically hushed next to any purposeful clicky switch - and I really do enjoy the style of dampening on the silent Box switches. I think silent Box dampeners strike a very good balance between a crisp feel and reducing the harshness in bottom-out sound and feel.