I’m going to start studying with the 2008 notes until I get the 2009 in June or July. Some sections of the exam have mostly the same readings from 2008 to 2009, but there some significant differences in certain areas, as well as in the segregation of material. The 2008 Schweser notes will definately be valuble if you dont have the 09’s, but I doubt they would be sufficient on their own…