I realised there is a pinned thread about this subject but thought others might be interested in the outcome of my case with Alfa Romeo UK who my local dealer (Picadilly) suggested I take the case up with as they were happy the car (2009 159 1.9TI) had been set up within the tolerances given to them.
Basically my car had only done 2K miles and yet the inner edges of the fronts were already down to 4.5mm
After some discussion with ARUK they agreed to cover the cost of the geometry check at the dealership.
I took the car in today and told the dealer the car must be set to zero toe as stated by several people on here. The dealer told me they've found 1 is a better setting so would go for that - reluctantly I agreed.
When I got back they showed me the report and said the allignment bloke works out what is optimum for the car based on wheels, suspension settings etc and arrived at 1.75mm for the 1.9TI from it's before setting of 3.25mm, this seemed hardly worthwhile as the change was only 1.5mm !!
Anyway I was happy to accept they knew best and left it at that. To be fair whether in the mind or not but the car did seem to handle, corner better this afternoon. I looked at the report again to try and understand it all and then discovered it was actually MINUS 3.25mm before and was now PLUS 1.75mm after the computer set it up optimally, so actually a 5mm swing !
.....that might explain the difference in drive !
Time will tell whether this will sort the inner wear out and i'm hopefull it will, if not i'll simply re-open the case with ARUK.
Some in summary a 5mm swing in the settings on the fronts, for the record the rears were set to +3.2mm toe and revised to +2.5mm toe
There must be 100's of owners in the same position but i'm not sure it's a simple case of saying one setting suits all as a stock 2.2 JTS is different to a stock 1.9 is different to 2.4 Sportswaggon or a 1.9TI etc etc.
I'll post progress on the sticky thread but something for all owners to keep an eye on and take the action you seem fit.