Since I've had this problem for a long while, I've read most of the threads I could find about it on here, Audiworld and other places. Figured I'd try to dig around in VagCom in order for it to give me some clues to what's the problem.
Through an Audi TSB document, I did manage to find a criteria for whether the clutch pack should be replaced through measurement. I used that information with another procedure in order to gain results.

From the TSB
If the difference between MVB 12 position 1 and MVB 12 position 2 is below 65 mA, or a negativevalue, and ifMVB 10, position 1 is below 300 mA (2005 and later model years - below 350 mA):




Replace the 6-plate clutch pack with a new 7-plate clutch pack.
This refers to measurement blocks on the auto. trans module in Vagcom. Mine was 750mA - 675mA = 75mA difference. Just above the threshold. My block 10 pos 1 value was 235. So, close to what would be a replaced clutch pack.

I then noticed that some of the blocks showed ADP Run. I know those should normally only be there if adaption isn't complete, and the instructions specify it shouldn't normally be run without changing components in the tranny. So I tried following the Ross Tech guide for adaption. Kinda panicked a bit when the RPM went wild, but after doing the stated procedure all blocks showed ADP OK after a couple of iterations.
I then happened to look again at the values I measured earlier, and block 12 pos 1 was now showing 1.0A, with pos 2 showing 0.75 or so. I'm not really sure what exactly these currents represent, there isn't any readily available documentation. But it made a huge difference in throttle response. The car pulled away much more easily and behaves much more seamless between the throttle stages. I also didn't have any juddering on the test drive.
Now, other than that some kind of learning mode has been completed, I'm not sure precisely what has happened, and it will probably not make your worn out parts like nw. Maybe it won't last - I don't know. But there was a definite improvement for me, it felt much more like what I can imagine being the intended feeling of driving this car.
I'm going to re-measure these values after a week of driving, but for in order to remember what I did and for any other who might be interested, I decided to write it down here.