> And to add to that:
> Servo pulses normally get updated every 20 mS, so it's a pulse of 1-2 mS
> every 20mS.
> So you got 20mS to update each of your eight servos, one after the
> other:
>   _
> _| |__________1
> ___| |________2
> _____| |______3
> etc.

For smoother response, you can fire them more often.
I assumed that this is what they were after, because firing them
sequentially would be no problem at all.