These are the 3 that I took. I thought that 7 was easiest, but that could be because I took it last. Just out of curiosity, why are you taking 2 in one weekend? I feel like most ppl spread them out so they can see the progression. With having them so close, I'm not sure how much new information that would give you. If it were me, I'd try to evenly spread them out over the rest of your study time. Just a thought.