In most golf techniques, the LEFT LEG is the Pivotal Axis, this is the one we are rotating around during the downstroke, and the weight is mainly on this leg during the downstroke, through the impact area, on to the finish. The Bennett/Plummer techniques even have the weight here all the way throughout the stroke.
I have heard of techniques where the Pivotal Axis is on the right leg. Are any of you familiar with any of these?