Has anyone used instantcert or speedy prep to prepare for Clep or Dantes exams? Are these methods any good? I want to try a DSST/Dantes exams, but I'm a little scared. Most of my ACE accredited tests have been Cleps. I am used to doing them, but I need to branch out. I just can't read 600 page textbooks to prepare for a standardized test. 350 pages is about my limit. Any suggestions?