Ya that trackir looks awesome, but I don't see that in my future.
As for the ground rising to smack you and flying below ground level. A packet
loss and resend, packets traveling through different routers, the trunk line activity,
and local traffic can all cause fluctuation in your connect. Hence the smoothing software
used; so the folks with a difficult connect see smooth/smoother screens, than what
would be drawn with the raw data.
Err well that's the devil of the net. That's why streamed movies are buffered, so you
won't have a jerky movie to watch.
The bad thing is lag can bite you now and then; although it seems it's in your favor
most times.