Never haven taken the LSAT or the LSAT Flex, can I ask, is there a visible timer that is counting down or just a five minute warning? Thanks! Also, can I use whatever color writing utensils I want now that they okayed mechanical pencils and pens? Whatever work paper I want?

I have lots of old tests - including tests 30-50. The logic puzzles seem to be very different from the puzzle types from more recent tests, but I don't want to run out of practice material by only doing tests in the 60s, 70s, and 80s. Any thoughts on the older puzzle problems being less relevant? What about the LR & RC? thanks!