[BerntR]

Ask yourself the questions . . . what components are causing the "handle to raise up"? . . . . there are culprits.

I believe clubhead inertia pulls the hands out. When Hogan and Palmer keeps the shoulder turn going both their pushin' and pullin' maintain geometrical properties that make it simpler to resist CF a lot better. Of course there can be invisible forces at work as well. For instance, we do have muscles related to the shoulder joints that enables us to press the hands down inwards.