I don’t believe the geometry changes between big bolt and small bolt setups. I could be wrong, not saying I am certain. But if it changed, I am sure the factory evaluated it either way.
this comment tells me everything.....I would say YOU are the one that has no understanding what effects roll center yet alone how you correct or adjust it.
BTW.... the factory DID NOT change a thing. Notice the hub (tires) stick out (after 73-74) almost 1" further per side after 73 making the rear track width narrower than the front width?