We started doing parts therapy using IFS and we're also reading Jay Earley's Self-Therapy. I really, really like it because it goes beyond Manichean categories of adult/child where adult is good and child is bad. On Friday we looked at procrastinating part and why she procrastinates, which parts she is protecting (perfectionist is one of them). This type of therapy helps me to not just say, oh it's the child, but ask why I/the child is acting and thinking in a certain way.

As far as a mismatch between what parts exist, I haven't so much encountered that (though we're at the beginning). sometimes she'll say this seems like an X or Y part and I'll think, it's more like Y. But knowing me so well, she also is able to see things that I can't see or have repressed.