For lady, CBM on 1(slight) and 3. By the way, as far as we know, this figure exists in the ISTD syllabus .It is a figure of Felow level (No. 22). For full description, please find the page 69 of the Ballroom Technique of ISTD, but in the chart, added one more step (LF fwd for man - RF back for lady and CBM on this step for both) and count S, Q,Q,Q,Q,(S).
We hope that what we have written above is helpful.
HaOanhTranThanh