Starting off with the base pattern of rotating 2 count 4 count feed, we then add the maniuplators to do 3B (Brook in blue t-shirt the B maniuplator, Steve in black t-shirt the 3 manipulator). Every 30 beats you get back to the start, and so every 30 beats the B/V manipulator (Brook at this point) switches to the other pattern and the 5 people do around of 3B/3V. We do 3B/3V/3B/3V and then try to exit the pattern.
Patterned invented by Aidan - see 'How to Steal From Your Friends' at http://www.juggle.me.uk/passing/ where 3,V,B and transitions between them are described.
In Aidan Notation (X, Y, Z are the jugglers):
X: Ps | Ps | Ps
Y: Ps | ss | Ps
Z: ss | Ps | ss
3: cZZ | sZX | iXY
V: cXY | sYY | iXZ
B: iXY | cYY | sYX
I switch by doing the second column of the pattern I've arrived in (as manipulator) and then switching to the third column of the new pattern (and everyone responds accordingly).