[BerntR]

Starretj responded: Gravity has no more effect on the clubhead during the downswing than it does at address or at any other point in the swing.

In order for gravity to work the club, the club must be moved at least partly in the same direction that gravity points.

Work is force * travel *cos(the angle between the force vector and the travel direction). At address the angle will be close to 90* and the work gravity does on the club will be close to zero.

At address, the club may be moved left or right, while gravity still points at the ground. There's no way gravity kan work the club in this position. Midway down, the club is moving down, out and forward. Gravity will contribute to the down component. At impact, the down component is small and gravity can do very little to move the club. So the difference is big.

Quote: Also, gravity can be symbolized by a vector acting thru the center of mass of the entire club which will be higher than the clubhead.

But that's not enough. Gravity will move the hands and arms as well.

Quote: You should be using gravity along with centrifugal force to guide the sweetspot to the low point of your swing.

I agree. But bottom line is, long as the golf stroke is done on an inclined plane on planet earth, gravity will "try" to pull the club and the arms off plane during the swing. It will "try" to disturb the geometry and mess with the swing plane. How can it not?

We could be opposing gravity and "forcing" the club to be on a true plane throughout the swing. Sure it's possible. But I am more inclined to believe that we are accounting for this in our swings by directing our power packages' force vectors on a slightly flatter plane. And then we just let gravity lower the swing plane through certain parts of the down swing.

Please disagree and/or elaborate. These are not ready made thoughts.