[strav]

Here's a little from "Golf Lessons from Sam Snead" (p.54) which correlates with what DG is saying.
"When you start the club down you have the feeling of pulling down with the last two fingers of the left hand. The left hand does the work and the right hand comes in when you are ready to uncock the wrists. Wait as long as possible before uncocking. Save your power until it counts - at the point of impact."