For many years that question would have been easy for me to answer, and the answer would have been keep perfect non skidding contact between my ski's edges and the snow (whatever edges I happened to be on at the time). Last year I changed tactics and decided to explore new ground and learn how to ski slowly in big bumps using a skidded active extension retraction technique as advocated by the ziper-line mogul skiers. I didn't see any big bumps last year, just a few small and medium sized ones, but i did find some deep (for the east) soft snow to try and ski slowly in and also spent a little time doing the medium sized icy bumps (not much). This season I had resolved to just go and have fun doing a bit of everything, but your question provoked some introspection as to what would be a good thing to concentrate on.
I think I will focus (when I feel the urge to work on points for style) on the balance between absorption and cm path deflection. Looking at my skiing and the potentially embarasing moments, two incidents come to mind. In one I was surprised at the last moment by a sizable bump while going about as fast as you can go on freezing rain ice at Blue Mountain (straight-lining spectacular on the SGs
); my goggles were covered with snow-gun spray at the time so I could see other skiers as a blur but some of the terrain irregularities were a little hard to see. At the last second I instinctively tightened my leg muscles to push against the bump. I overdid it and ended up too far back. Though I'm feeling pretty smug about my recovery, I shouldn't have needed to make one. I saw a crash video somewhere of someone (who looked like he was skiing terrain beyond his abilities, but hey we've all done that and had fun doing it most times) doing pretty much the same thing. The first bump put him out of shape too far back and the next thing you know he was taking a wild tumble. Later that same day, they had set up some sort of speed bump by aiming their snow guns at pretty much the same place near the bottom of a black where it met up with other trails. I didn't realize the extent of the bumps until I was in them. I over-absorbed and put my cg way ahead on the first bump which made the second one kind of rough. So there you have it. A bump comes along and you balance doing a lot of absorbing and having your cm not notice the bump, or you use it to deflect your cm's path so that your not too far away from being centred. Well it makes sense to me.