If that's still what you want to do, it's not honest to call the values left over "human values". Human values are the values humans have, in all their meaty messiness.

Fair enough

And you're still faced with the problem, for the preference systems that remain, of deciding what results they should give in new environments.

To put it simply (and more generally) I would just say that I still don't fully know my preferences. In particular, even after figuring out which parts of the Matt Simpson system are me, my values are still underdetermined (this is the point of my "partially?" in the grandparent).

I'm not disagreeing with you at all, btw, just clarifying some terms.

With that out of the way, are you suggesting that there is no correct/best way to go from the underdetermined preferences to a consistent set of preferences? Or in your terms, to decide what results the remaining preference systems should give in new environments? (I think I know your answer to this - its just an understanding check).