lindsey...what do u mean by many people "
When I say "many people back the shaft up" I am referring to what many pop instructors call inside steep. After or during the transition/counterfall, if the hand path (from down the targetline view) moves on a line that is to high or on a diagonal that appears to be more horizontal than vertical, the clubhead must fall behind and thus orient the shaft under/laid off. Now the shaft/clubhead is in essence backing up. most of the time it will reslut in forcing the clubhead to open and at impact the shaft will be to vertical. When I say the shaft will be to vertical I mean that it is steeper than is designed to be at impact.
Why is this important to understand?
Example 1 - an individual has a neutral alignment to the shot, for straightish ball flight and they have this type of out/high hand path. They have to back the clubhead and shaft under that hand path to hit the ball. If they did not back it up they would either shank it or miss it entirely on the outside the target line side of the ball. Many players and bad instruction for that matter will bandaid this move with a strong grip to help alleviate the misses for the backed up steep shaft and opened face.
Example 2 let's say a player has a hand path that is vertical and is moving down on a line between the feet and the ball (again down the line view). They now have the opportunity to steepen the shaft or tumble it so the clubhead is moving out towards the ball and also squaring the face. This is the ideal scenario. Because the player's hands/butt end of club have the potential to arrive in the location they started and the shaft can be orientd in the lie angle it was designed at impact.
Now, even if the hand path is correct, there is no reason for the clubhead to swing out to the ball or for the face to square. You may have thoughts now that say to you can i add some toss by straightening the right wrist or what about roll? These may be options in an effort to square the face, but the key is that the initial stressing of the shaft whether it be early or late must input this tumble because waiting till the bottom is folly because as we have learned the "boat has left the dock"
I hope this epic has helped.
Lindsey