Anesthesia review sources

I know most people look to Valley Review when preparing for the boards, however has anyone considered some of the sources that the anesthesiology residents use to prepare for theirs (ie Jensen Big Blue or Olser Anesthesia Review)? Thanks in advance.

This is the first time I have heard of Jensen Big blue or Olser Anesthesia review, can you provide further information about them.

One thing I know for sure, by the time, SRNA's are eligible for boards, they are spent in energy, emotions and resources, I figure they will want something guaranteed.

I have spoken to several anesthesia residents about how they prepare for written boards, and many of them suggested Jensen's Big Blue or the Osler Anesthesia Review. There is a sample chapter on the Big Blue website. It's cogently organized and goes into greater detail than Valley. I haven't seen any of the Osler material, but the written materials are much cheaper than Jensen or Valley.

Jensen - http://www.boardprep.com

Osler - http://www.osler.org/specialties/index.php