I would recommend taking a few more beforehand (probably no more than 2). Before I took the May LSAT Flex, I bombed one of my PTs and it kind of made me feel better-- like all of my dumb mistakes were out of the way for the actual test (and I ended up scoring way better than expected). Would also recommend making the few more the newer ones, so you feel more confident in those. Just my two cents, but I don't think more PTs hurts (to a certain degree, obviously).