According to TWI's definition of unbeliver, I am one. A rank one. Currently practicing a combination of Catholicism, Buddhism, and Paganism. I can't say I have held on to any of the core beliefs of TWI. They all dropped off as I picked them up and examined them once I was outside of the group. I do still hold on to the memories of the beliefs, and I have found it has given me a lot of empathy for others who follow belief systems (religious and political) that I do not subscribe to. I feel that I have become more of who I really am in the process - not someone who is watching myself do things according to how someone else has told me it should be done, but instead living in the present moment, comfortable in my own being, knowing my decisions are my own to make.
I base my belief now on the simple "Love God and love your neighbor as yourself" with the definition of neighbor being all humanity instead of the narrow view of "the Household of Zion."