I didn't mean the book contradicts I meant the contradiction in learning between irons and tee'd up shots. The book lays it all out for you and is very clear.

My point was that, a few on here, myself included are a bit shaky with the driver. This could stem from having to adjust from the downward attack to the horizontal.

As you said practice is the key, being comfortable and confident with subtle changes. It's just in these early days, the subtle change could throw things wobbly a bit!