Sidestick command is mapped similarly for nose-up and nose-down inputs, so that you don't get twice the sensitivity when applying a nose-down input (since nose-down travel is 1/2 that of nose-up: 15 degrees vs. 30). Similarly, when you apply half nose down stick, you are commanding half of 30 degrees, or 15, which is full nose down elevator. Simple, really
P.S. Nothing is ever what it seems on the Bus!
