This is the procedure at ball address. I can make my left eye dominant on the SL and right eye dominant on the AL on the shot given for this post. You don't even need to think about eye dominance when executing these shots, as angling your face into the cutting edge of CB does this automatically. I thought it was a good way to describe what is happening for the technocrats on this forum.
And TBH, this level of eye dominance description didn't exist before the book. It has made things much easier to understand IMHO. Follow the SL down to full stance, keeping eye dominance the same all the way in.
Once in full stance, you can double check the SL and make sure it's still on CCB before you shoot. This is the bees knees for CTE. The AL may fall out of direct sight at full stance depending on the shot, but you can still tell if it's on or not. You can also back out to ball address and verify that the AL is still on. On this particular shot for this post, I can still see both SL and AL at full stance, as the CB and OB are sufficient distance from each other to do so.