Marley, All you can do is try it out. Many folks shoot very well using this "pre-aim" style. Jim P in the article, does mention on page 31 ("second bullet point in the top of the right hand column) to "lay your head over to align the arrow..." so he is getting a "second" aiming alignment after reaching full draw.
My thoughts are ( and they are just that -- THOUGHTS!!) is that trying to maintain an aiming alignment during the draw serves no purpose and tends to make it harder to get proper alignments and back muscle use. (harder, NOT impossible -- as I say, many shoot this way very well).
I just FEEL that getting to full draw is more important than aiming during this part of the shot. Once at full draw, then you are ready to shoot and that is when the aiming should be done again, just A way of thinking about it.
I think of it this way. If you were going to shoot a rifle (any gun for that matter) would you aim an empty rifle at a target then once you have your "perfect" aim, load the gun? To me, it makes no sense to aim before the weapon is ready to fire and for a bow, it is not ready to fire until you are at full draw.
That is why I suggest that using the rotational draw and allowing the arrow to rotate into alignment as your reach anchor, is good for your physical setup and then once there, aiming becomes the next step. I'd also suggest that IF you do it well, you will be pretty much on target as you reach full draw - anchor.
There are many ways to think about and do this and none of them is inherently right or wrong. Personal experimentation is the only way to find the best way for you!
Arne