Dampening in one fork, rebound in the other?

[Casper250]

I was looking through one of my sport bike magazines and this dutch suspension shop had set up the fork on a cbr1000RR. The interesting thing was that they used one side for compression and the other side for rebound dampening. What is the purpose/advantage of this?

 

[MXTex]

Check out the APT fork mods @ www.dicksracing.com.