So given Joubet's description, Avalement and Extension would be far more accurate would it not ? That would coincide with what the Canadian Freestyle team and Jonney Mosleley say above.
You and Dan make my point quite nicely. If you are going to call it absorbtion you open the door to including the PASSIVE absorbtion (reploiment) that Jobert speaks of, which is accepted by many national systems and noted individuals in the industry.
Now in post 512 in this thread in the Mogul Logic video at 41 seconds we hear you start with a release (passive) then pull your feet back (active). So the skier in that video tells us to use both Avalement and Reploiment.
Now in the Chuck Martin video linked to in post 519 at 26 seconds we hear speed control is achieved 50% by the turns "and the other 50% comes from the absorbtion of the knees up and DOWN" .............OK.....so now absorbtion is also extension.
So while Dan refers to it as "absorbtion and extension" in his brain he is probably totally accurate. To some of the rest of us.....not so much. I fully agree that in the field of competitive mogul skiing (especially the zipper line) it's a pretty rare event to passively absorb a mogul. So in his head absorbing probably means Avalement or ACTIVE absorbtion by pulling the feet either up or back. That is the move he uses.....that is what he calls absorbtion. Is it ??????
It's not all or nothing. It's a continuum. I believe this is the "touch" referred to in Dan's book. I see no problems with describing it as partial or fully. The concepts are there for the taking.
One problem I have with flexion and extension is that when you walk into a ski shop and try on some ski boots they say, "flex" which means push your shins into the tongue. So, I think flexion can easily be misunderstood which happened to me the first time I read that term. I like how absorption carries the shock absorber analogy which immediately gets to the essence of what you need to do. Don't let the bump toss you. Though we've seen examples of that being misunderstood too. Most of us discussing this now are saying similar things. I believe we're just debating how much pressure when and for what speeds, which is certainly debatable, and changing terms isn't going to make it any less so.