I have kaplan subjects tests 5 each for bio chem and ochem and also couple of full length tests. I also have distroyer and other things that prepared me well before solving those subject tests. for biology, i would say i been getting i don't know around 19-21. but for gen chem i get around 18-19. and organic chem 15-16. I mean, what did you guys think the difficulty of kaplan subject tests comparing to the actual DAT or other tests such as topscore or achiever. Thanks and good luck studying everyone!