As an engineer, "shock" , as I'm using in the phrase "shock absorption" means exactly what you said. Shock has an exact meaning to me; I just put it in terms I understand; thanks for putting it in more lay terms.
Without the benefit of a manual, I had to piece together how the system works from crawlling under the car, playing with the level control unit and searching this website.
So, my question for you is. Why would you replace the accumulators first if his vehicle feels "bouncy"? ...Wouldn't a "hard" ride lead you to the accumulators first???