From 8 chain thru or 1/4 tag - Extend; then

From Waves [an allowed starting formation]: Single Hinge & Centers Trade (Weave); centers Hinge, ends 1/2 Circulate; wave of six Arm Turn 1/2; new centers Cast 3/4 as ends 1/2 Circulate. Ends in parallel waves [a (true) zero from the parallel wave starting formation].