Age Regression Question

Hi everyone,
I posted a question last week regarding a client that stated she gained weight after a hypnosis session. I believe she has major self sabotage going on and will address that and also do some parts therapy at our next session. I am in the process of learning more about age regression, and until I have completed this and completely understand if it is the right technique or not, using it will have to wait with this client. Determining when to use it or not seems to be in question and it seems to be an individual opinion with the hypnotherapists on this discussion group.
I would appreciate any information on resources that you may have regarding AR. Who to learn from, the most informative, cd, books, live seminar? (Cost effective is important as well)
Also, for those of you who believe AR is the best way to go with this weight loss client, what might be your opinion as the next choice, with regard to effectiveness with this client?
Thank you,
Sue