Originally Posted by
PaperDolls 
... I think it would help me be a better AA sponsor.
This has certainly been my experience. In fact, Al-Anon has helped me immensely with ALL of my relationships.
And to respond to your original question: at my first Al-Anon meeting I identified as an alcoholic. After the meeting, an Al-Anon old timer pulled me aside and gently let me know that, at that particular meeting, they requested that attendees not identify as members of or discuss any other 12 Step programs. The idea was to keep the focus firmly on Al-Anon. I was a little embarrassed, but it made sense.
So glad you are considering this. It is an awesome program, and such a great compliment to AA!