Users follow users, best approach?

I'm going through the building your own activity feed episode of gorails. I want to make it so that users (within the same tenant) can follow other users. Has any other users of Jumpstart appraoched this? Is there any benefit to subclassing the Jumpstart::UsersController vs. starting with a new users_controller?

Just for some clarity: the Jumpstart::UsersController is only for the Jumpstart admin area to create Admin users. I wouldn't subclass that for building your own User profile pages, etc.

I always refer back to the Railscasts episode on followers/following and build followers that way. http://railscasts.com/episodes/163-self-referential-association