Thanks guys; thanks Eric. Credit should go to Bilstein USA Help Desk and the "pioneers" (6speedonline 996 turbo forum, rennlist, and some people here - you know who you are), from whom I collect the data. I merely categorize the upgrades into stages that all of us amateurs could understand.
I did emphasize a method from my days as an over-the-top audiophile : Isolate each component and describe the changes, in insufferable minute details LOL .

BTW, a graph of the 10 steps of PSS10 below. Note that each compression curve is "coupled" with a rebound curve. Higher compression force is coupled with higher rebound force. Not all tuners follow this philosophy and more "advanced" coilover allow you to change the 2 independently.
Also, Bilstein once told me Damptronic's Normal equals the PSS10's softest curve, and Firm equals the stiffest, but I am not convinced this is the case. There might also be some switching among the curves with the Damptronic during driving -- so we don't really know how many of these 10 curves are used in the Damptronic.

The horizontal axis is the velocity of the shaft of the shock absorber, not the car.

 

nevermind just saw here going on first week of Feb