From Parallel Lines or other applicable formations.

Outsides Zing as Centers (Concentric) Circulate and Face In.

Parallel Lines end in a Double Pass Thru.

before Ease Off   after

before Ease Off   after

Zing [C1] (Jim Davis 1981): From an applicable 2 x 2. Leaders, as one movement, 1/4 Out and Run as Trailers Box Circulate and 1/4 In. A non-T-Bone 2 x 2 ends in Facing Couples.

Nice & Easy [C4]: From applicable formations. Outsides Zing as Centers Trade & Roll.

Wahoo [obsolete]: From a 2 x 2. Box Circulate & 1/4 In. This is the center's part of Ease Off.