core 7.29 og 7.x-2.x-dev, also tested 7x-2.7
So, I'm going a little crazy trying to get users assigned a membership type other than default in an og.
I can create a new membership type no problem, and add fields. What I can't do for the life of me is find how to assign users to that membership type. The node 1 video made it seem like it shows automatically when adding/editing a user in a group (#overlay=group/node/1/admin/people/add-user), as roles do, but no dice. I realize that video is 2 years old, but it is the most helpful thing I can find on the subject.