In my opinion, every section is important on dat achiever and topscore. Base on that SDNers have said, topscore is more like the real DAT (usually you get a couple of points higher on your real DAT compare to topscore). DAT achiever is an excellent tool, but it is alot harder compare to the real thing. If you do it and correct your mistakes, you'll be fine. Another thing, DAT achiever has excellent PAT sections for practice. I'm currently practicing those tests myself. PM me if you have more questions. I know it's kindda annoying when you post something and no one replies, so i'm just trying to help out. good luck!