if you let me have a reg of a CS with active dampers I can check.
I can say that the non adaptive CS and non adaptive GTI PP are the same.
Front 5Q0413031FN
Rears 5Q0513029GL
I don't have a UK car but I just found this from a VW ad: LC66WYW (CS with DCC)
In principle they should be the same as the only difference should be in springs (at least according to the CS-S press release) but you never know...
Have to say what I great thread and respect to you for the time you spend on it. Makes a CS to CS-S project a very simple job for whoever is after it. That was actually my plan before getting my CS (track down suspension differences and replace all the CS-S bespoke items) but it honestly feels so good as it is (much much better and balanced than all previously suspension tuned cars I had) that I don't think I will bother for a mere 3-4 trackdays per year.