You really have to have the video to fully grasp what is said in the book

The seal of the wrists and the crosslateral move become crystal clear.

The grip and the downswing seemed very uncomfortable for me (on the downswing you attempt to bring the palm of your trail hand down like you were going to slap a midget standing by your trail hip on top of the head.

The good contact hits did go very straight, but there was also a loss of distance.