They can care less since they hype themselves on many forums so due to volume of people they get off the forums and the forums preventing negative content of those who paid those monthly supportng vendor fees and got screwed over by those vendors they have a long list of new customers.

The fact they grind off the vendor and model on CAM shows they did not make the CAM and think somehow they are holding some secret power grind when someone smart would have the CAM measured and find what the grind values are.

In the long run sooner or later the value springs need to be changed as to use and age and car owner is fucked since he has no idea what CAM grind is or if he wanted to try another CAM he has no idea what is now in car so how does he know what different grind to use.

In any case this 2007 A6 C6 the shop owner drove the car 350 miles to get home and says after the PCM and TCM relearned the tunes of ours for both are now correct and car drives well.