Parallel plane theory revisited

[Mathew]

I was reading my yellow book last night and came across this passage in 7-7

"Other controlled procedures that achieve On Plane Impact may be more difficult but need not be deemed improper. Such as positioning the clubshaft at the Top to the Plane Angle intended for Release"

So what I think this is saying - the hands can be on one plane... ie turned shoulder plane and the clubshaft positioned to the release plane... ie elbow plane....