Which is better: InstantCert - or - REA?

[studygoddess]

I have used only IC, this forum, and the peterson's practice tests to study. I have passed several CLEP and 6 DSSTs. I did take the CLEP American Literature and used the Idiots Guide because there were not any IC flashcards. I personally could not use a text book. I can't read it. It is too much information. I also began using IC because I did not want to read text books.