[BerntR]

There is a pro somewhere in US who has his students throw the club down the driving range.

They are supposed to use their usual swing, but instead of sending a ball down the range the let go of the club and try to throw it as far and as straight as possible. It really is an eye opener for quitters, who since longe has convinced themselves that they will never be able to turn through the ball as the pros do.

He shoots two video sequences of them: First when they hit balls, then when they throw clubs. "Everybody" are amazed when they realize just how right they move through impact when they throw clubs.

PS: This helps. Even just thinking about throwing the club out there helps. I have a friend who tends to quit on the ball, and I had him pretend that he was going to throw his club, and that's the first time I saw him really lead the down stroke with his feet and hips.