I am a lefty and tend to slice. I have NSA and "Flipper". In an attempt to improve my swing I tried flattening my right wrist during the takeaway. This seemed to allow me to take a more complete backswing and to effect a left hip pivot. When I don't flatten my wrist (via twistaway) I find that I can't make a good backswing nor can I effect a left hip pivot. The bent right wrist seems to lnhibit these motions.
Is this a valid observation? Is there an explanation for the apparent inhibitory effect on the full backswing and hip pivot. When I achieved a more complete backswing/pivot the shot straightened out and went farther.