I'm aware of Moral Uncertainty and the moral parliament model, as well as this (uncomplete) sequence by MichaelA, but I'm not sure what concrete actions moral uncertainty entails.
What specific actions should someone take if they are highly uncertain about the validity of different ethical theories?
I think the idea is to assign credences to plausible theories, where plausible is taken to mean some subset of the following:
Another equivalent way to proceed is to consider all possible theories, but the credence given to the (completely) implausible theories is 0 or sufficiently close to it.