I'm in the same boat also. Taking the DAT in a couple weeks. I'm pretty much using Destroyer and Bootcamp right now. I bought the Achiever 3 test version just to use for their PAT section. I kind of prefer Bootcamp's PAT though. Achiever is so hard. I managed to make a 21 on the first PAT, but I had to set the time to 90 minutes instead of 60.