I've got the same problem on my 52 reg estate. Had the tracking adjusted but it didn't cure the problem. Same thing has occured again, tracking out again but not loads - +1.2 and + 1.3 should be +0.6 apparently.
The machine - digital - said the camber was out on both.
Are the settings the same for the sport suspension model as other passats? It occurred to me that they might not be and that the tyre people may just have the settings for passats as a whole?:confused: