I don't know about NW. I've got Youel's review on tape. I don't like it. He gets too tied up in his mneumonics. They are unusable nothing you can easily relate to. Now, his questions book is good. I'm going to put his tapes & books on Ebay real soon. According to Dr. Youel, he ahsn't changed his prep materials since 2002. He is planning an update in late 2005 or 2006.

Hope this helps.