I've been doing the gold standard exams. They seem harder than the AAMC ones to me. (I'm not doing their verbal since I'm working through the AAMC self assessment verbal instead.) The PS is especially calculation heavy, but it's good practice for doing quick and complicated math. They're also pretty cheap. The Berkeley Review ones take a while to activate, so I didn't leave enough time for them. GS seemed like a good backup. Thoughts SN2?