Thanks Knoxious! ;) The contact weave. Hopefully fairly obvious to begin with... Go check out the videos of knox on soton-firespinning if you want to see another tutorial...
One hand underneath, one on top and they swap which is on the bottom as the staff spins in a figure of eight.
A few variations on hand positions are shown at the end. And it's debatable whether an extra beat version is possible. (Or elegant.)
(Right click, save target as... )
Streaming Flash Video:
Adam Lobo Tutorial on Youtube: