New to 7Sage - question

Hey everyone! So I have been going through some of the free trial material and I think have decided that I will be signing up for ultimate+. My question is why does the schedule have you take all prep tests back to back once you go through the lessons? Is it common or should i take prep tests in between weeks? Should I also take the 2007 LSAT diagnostics test first or go over some material before taking it?

Thank you!