[jim_0068]

Anyway,
I noticed that over the last 6 months, my clubhead and clubshaft are on that line for a long long time (on the backswing).

Is there something "wrong" with this? Am I doing something incorrectly, or will I need some kind of compensating move?

Thanks

noproblemos...you need to relearn what the definition of plane really is. It doesn't matter if you shift, use 4 planes, or whatever. The key is that you try and keep one end of the club always pointing to the plane line unless it's parallel to it.

Ever see how plane lasers work? It's the same idea.

Me personally, i use a combination of shoulder turn takeaway and right forearm pickup for a backswing that goes along the elbow plane that shifts to the turned shoulder plane and back down to the elbow plane again.

Now on video, that would look "under plane" because it would go under the shaft plane at the start. However if you had a plane laser pointing at the sweet spot i'd still be tracing a darn near straight line.