Yeh, I studied with crack the pat, and i found it usefull too. I bought the big package (royal flush i think its called)...truth is i didnt use the extra problems so much, but the 10 tests where great. I did one a week a month before the dat, and 1 every day the week of to prepare me. A lot of their questions are much harder than the dat (eg they had half punches on their hole punching section) but its still a valuable tool for practice and getting used to taking a pat section. I think it's well worth the money-and i took the dat in august so i wouldnt be suprised if theyve worked on making their tests more applicable since then