Enneagram questions

I've been learning about the Enneagram, and I have some questions for those of you who are also interested in the Enneagram.  For those who have never heard of it, the Enneagram is a personality assessment tool, kind of like Meyers Briggs.  Here is a link to the 9 personality types - you can get an idea of which personality type sounds the most like you by scanning the list.  Allegedly, all of us fall into one of these categories to describe our primary motivations and fears - you may recognize some of your traits in other types, but there is one type that is your true home base.

So here's my dilemma:  I thought for sure that I knew my type, but after listening to some podcasts about Enneagram types, now I'm waffling between two types and can see significant pieces of myself in a third type.  I'm wondering if any of the rest of you had trouble identifying your type (and how you resolved it), or if you decided that you are a split between two types (and if this, can the Enneagram still be useful to you?).

Here are the 3 types I identify with and some of the key ways in which I do and don't fit (it should be noted that these 3 types are linked on the diagram above, and this might have something to do with my confusion - these types might get easily confused).

Type 9 (The Peacemaker) -  The Easygoing, Self-Effacing Type: Receptive, Reassuring, Agreeable, and Complacent

Do fit:  This is the type I first thought I was, and this is definitely the way I have always conducted myself in friendships and relationships.  I prioritize smooth waters, and I try to avoid conflict (not just externally, but even acknowledging in my head that conflict exists).  I let the other person take the lead in big and small ways.  

Don't fit: -- Nines tend to procrastinate and not finish projects, and the "deadly sin" they gravitate towards is slothfulness - these are not really my main areas of weakness.  Also, while I act like a nine in interpersonal relationships with close adult relations, I don't act like a nine at all in other contexts.  There's probably not a ton of nines who went to law school, for example.  
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Type 6 (The Loyalist) -  The Committed, Security-Oriented Type: Engaging, Responsible, Anxious, and Suspicious

Do fit:  This is how I parent and how I operate within the workplace or a group I'm committed to (such as church, a volunteer organization, the family unit).  On the positive side, I am loyal, dependable, and involved once I'm part of the group.  On the negative side, I definitely operate too often out of fear.  Also, I will defer to the leader's opinion and doubt my own thoughts.  This type ping pongs back and forth between opinions, and Kenny will tell you how often I do the "on one hand, on the other hand" routine.  This is the type I think I probably fit best into now, but it's still not a perfect fit.

Don't fit:  This type imagines worst-case scenarios and plans accordingly.  I approach special needs parenting this way, but not much of the rest of my life this way.  (Although I can Debbie Downer / wet blanket / devil's advocate with the best of them, so maybe this is a version of that characteristic of Type 6.)  Also, this type is often emotionally reactive, and I usually keep my external emotions on a tight leash.  
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Type 3 (The Achiever) - The Success-Oriented, Pragmatic Type: Adaptive, Excelling, Driven, and Image-Conscious

Do fit:  In school, it was VERY important to me to get the best grades, achieve athletic success, win awards, go to a good school, and anything else that was an external mark of achievement.  I did and still do care too much about what other people think of me.  This was true to a lesser extent in the workforce too - I wanted to excel at my job, win cases, and be recognized for doing good work.  

Don't fit:  Right now, as a stay at home mom, I'm completely out of the world where you're gunning for top grades and promotions and awards, and I feel very content to leave those things behind.  I have very little ambition to get back into the working world quickly and no desire to climb achievement ladders.  I do still care what people think of me, but it no longer feels so core to my identity.   (However, if / when I do get back into a school or work situation, I think the Type 3 characteristics would pop back out really quickly.)
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In summary - I feel like the way I behave under the rubric of the Enneagram is very dependent on context, and I'm not sure there's one type that is a perfect match to me.  I feel okay with this (a Nine response) and I feel skeptical that all of the billions of people in the world fit perfectly into just nine personality types (a Six response).  But the Enneagram expects you to primarily fall into one type.

So for those of you who are fellow Enneagram enthusiasts, here are my questions:

• What's your type?
• Do you feel pretty confident that you fit squarely within that type and not in any of the others?
• If yes, has that been true for you at all stages of your life and in all contexts?
• If you don't feel like you fit just one personality type, how do you use the Enneagram to help you?