I tend to agree and I can't find the specific thread but I recall someone saying the geometry and spring settings on the new products were set up so maximum sag is determined by maximum vehicle weight and the struts they supply for alignment simulate that ride height. This keeps the toe at a negative setting throughout the ride height from unloaded to max load.
The alignment issue came about by setting the toe to the factory spec at zero deflection, i.e. only the bike's load causing sag, not the added sag you get when riders and luggage are added. That caused the setting to go to toe out as the suspension compresses.
So, extrapolating that out it is obvious that a lighter rider will have more toe in than a heavier rider with no rider experiences toe out which is a major contributor to wandering at speed. So, technically a lighter rider MIGHT have a slight push situation near the cornering limit than a heavier rider. I'm pretty sure most riders would never notice the slight push while a lot of riders would notice the wander hence the settings and new alignment procedure.
Based on this I would also assume the instructions on the Fox shock upgrade will include how to determine the proper spring seat adjustment so your ride height is optimized. From the pictures the bottom spring seat is threaded so you have infinite adjustment within a certain range but it's not known by us what effect that will have on the ride height.
