Allways bad alignment!!!

Since 15500miles I had this problem, and started with the factory tires (continental sport contact)done a alignment, but then when I installed new tires at 20500miles I done again a new alignment, some 3000 miles later I noticed the same problem on the new tires (Bridgstone RE050A)...
Since then I done 3 alignments, 2nd one at the dealer, and the last one today on a tire specialist where I did all the other ones, and my surprise today the direction was on 20º (I don't know what this mean, I think its the vertical alignment) and the last time I was there they left it at 10º, this mean, my dealer just worst things up and I espected the oposite!!!
So, today they left it at 0º and I hope it would be ok now, but my tires are not so very good with 10500 miles only

I'm running with 2,35bar front (I think its bar!) , 2,5 rear measured today with a measurement tool.

Both the alignment shop and the dealer says that there is no problem with any part, only afination needed
i also have the same problem too...just doesn't seem like its possible to fix...done it more than 5 times and still having the same problem....



