So yeah I guess I should have mentioned: my settings above and the rough procedure I outlined do not take comfort into account. My concerns are predictable and responsive handling. The suggestions in the manual were adequate. But since this is the first time I've had a bike with so much adjustability I wanted to try coming up with something more optimal. There is necessarily a compromise between comfort and handling - a suspension tuned for speeding down twisty, bumpy back roads will not be comfortable for hours on a slab highway.
Tire pressure is really a different subject. The compromise there is typically between traction, responsive steering, and heat. Lower pressure somewhat mimics softer damping which may feel more comfortable, but less predictably than softening damping directly at the suspension. Usually the goal of lower pressure is increased traction at the cost of increased heat and slower steering response. While the goal of increased pressure is increased steering response and longevity at the cost of lower traction.
Everything is a compromise. Factory suggestions are a compromise that the engineers thought would cover more people than not. If you find yourself in the "not" category, then you have to find the balance that works best for you.