If you're curious, here's Loic's Lapierre over the course of the season. Let's take a look at what shock he chose to run, where and when. Turns out he ran coil over air most of the time. At this point, I have no idea why he does or does not choose air vs. coil.
Fort William: Air
Lenzerheide: Coil, complete with a special thermometer strip to keep track of damper temp on track