I think the experimental prefix should be weighed against how confident we are that people want it and how soon we want people to use it in it's final form.

The other properties we've put behind experimental, such as `forceIssuer` have had deep skepticism for inclusion and we don't want anyone using it who wouldn't be willing to update their code to an un-prefixed version.

I like experimental, as it is conservative... but I think we're pretty confident that we need this feature. We don't want partners to have to change their code in a 6 weeks or whatever to remove the experimental part, right?