Grip at impact fix?

[stevebayne]

If I take my grip at impact fix and my left shoulder is higher to get the correct shoulder to ball distance, wouldn't I lose that alignment when I move back to address position. In 2J1 under impact alignments they talk about soling the club and maintaining the left shoulder as center of the arc. That whole section about soling the club and getting as "far away from the ball as possible" really confuses me. Any help would be greatly appreciated.