Rolex, my god, man -- you are the Borg!

I couldn't tell from the setup, but are all your sticks, etc., plugged into an externally powered USB hub? If so, is there any way on the hub to tell for sure that it is externally powered and not drawing from the computer's USB bus?
The reason I ask is that I have a powered USB hub. However, at one point, although the connector visually looked plugged in, it wasn't, and so the hub wasn't getting external power. I wouldn't have been able to tell that except that (1) my stick was jittery when before it was smooth as glass and (2) once I noticed that and looked, I could see that the hub's LED that signifies it's on external power was not lit. Once I made sure the power connector was back in and functioning, everything went back to being very smooth and nice.