I was reading the reviews on Amazon for the latest ATI TEAS Review Manual: Sixth Edition Revised, and most people say it's not helpful at all, as well as there were a lot of mistakes, and that parts that say just to look up the information online lol, etc. I know that you can't expect one TEAS book to prepare you completely, but considering how horrible the revised Sixth Edition is, as well a the un-revised Sixth Edition, should I just get the 5th Edition and use that? Also, is the 5th edition manual still suitable for the 6th edition test? Thanks for your help and input!