There is no reset for the turn of the waist

Master Chen has long been saying that during positive circle (elbow in, turn the waist, hand out), there is no reset for the turn of the waist.  Today while I was telling the students the same during the morning practice, I realized how to achieve this actually. With a central vertical rod, your stretch the front of the waist from right to left for a right side positive circle, hold that stretch, and then stretch the back of the waist from left to right. The students verified that the turn of the waist was done in a single direction only.