Thanks for the response,
I am devoting my day today in figuring out how I could make this work.
An assumption (though I could be wrong) is that if I name my cookie after the auth cookie, then if someone's logged on, they should also appear logged on to yaf which would membership-query on a user based on the authentication, etc..
I would like to leave 3rd-party enabled (as it helps me understand OWIN better, this is a personal project).
But my question is, if all registration happens through my main site, I suppose I'd have to call the membership provider straight after and populate at least SOME values in YAF, namely a username. Now if I can find a way (there must be) for third party providers to also give access to user email...
Let's see, at least it's fun to explore 🙂