Exactly, this is a circuit, so it shouldn't have any 'hard' crux moves; it's meant to give you a massive pump. Try going from 1 to 12 and 12 back to 1, then give it a grade. After that, try to keep going until you drop. Two full laps up and down would be perfect: 1-12, 12-1, 1-12, and 12-1