I feel like my '03 is still not tracking as well as I would expect either. Thing is, the front Pirellis are from 2006, even though they have plenty of tread on them. I suspect that once I replace all my tyres I'll be happier. Attached are the alignment settings I ended up with when my brother aligned the wheels for me.
Notice how screwed the toe settings were previously. No wonder I got it at such a good price.
I'll just note also that the car has less than 22,000 miles on the odometer so it shouldn't be due to worn suspension. Bushings all seem fine.
Threaded Mode
