Samways, if you want to blend the motion and have early sway you can do that. But in a reverse turn, sway while the left side is still in advance would have to be right sway - this is the same sway with respect to the motion as the left sway that will be achieved once the right side is in advance. The incline of the body is in the same direction, but it's a different direction on the body because the body is rotating.
If you have left sway while the left side is still in advance and progress that to left sway with the right side in advance, that would be a tumbling action, which is called for in some special cases, but not here.