Not really, the B6 S4 isn't really worth tuning.
As you’ve mentioned in many posts regarding the B6. Car has plenty of power as it is. Would take about $15-20k worth of JHM parts to make “tuning” it worth it.
I’ll sit down with the links you mentioned and study up.
There was something about the vag com cable having a firmware update on the wiki link which I’m afraid I did about a year ago, so my cable may be the problem right from the get.