Ive tended to pack just like this, though got there through trial and error. I'll often pad between heavier items and the rear most of the pack such that it stacks them close to my back. (Edit for clarity: I pack like the second image, weight int he middle for good stability in harder terrain)

I found it interesting on a hike recently, seeing my buddy's 15yr newer pack, how many little features made load carrying far easier. 'Load lifters' in particular, drawing the load forward towards your neck, made such a large difference to shoulder weight that I retrofitted them to my own pack on the trail.