From Tandem Couples, a Mini-Wave Box or the 2 x 2
T-Bone obtained from a Mini-Wave Box after Leaders 1/4 Out.
There are two slightly different definitions of Boomerang depending upon
the starting formation.
- From Tandem Couples: Leaders Zoom as Trailers Circulate and
Trade. Ends in Facing Couples.
- From a Mini-Wave Box or other applicable 2 x 2 formations:
Leaders Zoom as Trailers Scoot Back (Extend, Trade, and Extend). A
Mini-Wave Box ends in a Mini-Wave Box. This use of Boomerang can
be fractionalized into halves.
Note: From Tandem Couples, everyone can Roll; from
other formations only the original Leaders can Roll.