I decided that i need a little more experience. I have/will have done all the topscore and kaplan tests, which of these is the best product, one that is harder rather than easier:

ace the dat
dat professor
Dat achiever


which one should i choose

thanks

I will strongly suggest DAT Achiever as its tests seem to have been set harder than the actual DAT especially when SNS, PAT, and QRT are of particular concern. Answer solutions are comprehensive plus this is the only guide that features complete 3D animation for the PAT.