Synthesis, I haven't tried taking them down and putting them on a solid surface like a desk yet. I tried them on tripods, and that didn't help. It made it worse.
3DA, I've tried the base stations at multiple angles and positions. Video shoot vibrations? I don't know what you mean. You can only tell they're vibrating if you touch them. Yes, SteamVR is updated. I'm not on the beta. I know I still shake a little bit, but the image shakes independent of that. It does not match my own movements. When I'm in the center, this is most visible. I already tried USB 2.0 and 3.0 on two different PCs. No difference.