It's all about getting into linear alignment. Anything less is counterproductive to consistent accuracy with the least muscular effort.
This style of archery form is as bio mechanic as possible and can be used within all disciplines of archery, but typically neglected for the trad bowhunter.
The takeaway key thing is to first come to full body alignment as the bow is drawn, and then held at full draw. Only then can you find out where it's best to anchor the string hand and string to the face. This means that anything to do with form before the string is drawn and after holding at full draw is at least somewhat subjective - do whatever feels/works best. What can't ever change is proper bone inline alignment when actually at full draw, before even finding where to repeatedly anchor the string hand and the string.
Linear alignment will almost always increase draw length for an archer who has some other non bio mechanic archery form. Proper alignment will almost always increase the holding weight as well. But because the lineup of bones is holding the majority of the load, once the draw part is over and alignment is complete, the load begins to feel less because using muscles to get to linear alignment can be a struggle of sorts, but once at full draw it's bone structure that's holding the load, with far less muscles involved.
The part of linear alignment that's really important is the string hand arm at full draw. The bow hand arm is easy - it's a straight line from wrist, to elbow, to shoulder, to shoulder. Now pull back the string ... where does the pulling stop? When the string arm is relatively aligned with the arrow, and its elbow joint is firmly pressed and can hold a pencil. If there is a gap within the string arm there can be no linear alignment because that forearm is no longer in line with the arrow. If the string arm elbow goes past the bow arm's straight line, that's not linear alignment either because it will not be in direct line with the arrow.
Adding to linear alignment is a bow arm and shoulder that's not contorted, but pushing forward, along with a bow hand that meets the bow grip as horizontal as possible.