[EdZ]

The answer is in yoda's post. "right palm driven squarely at the Ball (Angled Hinge Action) -- no separate Rolling action".

You can use that grip with a horizontal hinge of the clubface. As long as the left arm flying wedge stays intact - verticle to the ground - while the right palm is driven in a paddle wheel fashion.

Remember that if the #3 accumulator is zeroed out, all hinge actions take on angled hinge rhythm. Having the left hand more turned, how it hangs naturally at your side, but still 'flat' at impact, tends to reduce the #3 accumulator.