ELAN NOTES ONLY? finance, reading, starting, especially

edgeon

Ok, so i am using Elan notes only. I did pretty well on the CFAI EOC on econimics, fsa, and quant. However, starting with corp finance and especially after the corp. governance chapters, i started getting low 80s and 70s. I also realized that quite a few things that are in the CFAI books are totally omitted in the Elan notes (those are the questions i was getting wrong). I am now freaking out! Should i start reading CFAI books too? Is there anyone experiencing the same problem or is it just me? Anyone with prior experience, please advice here, thanks.