I had 255/35/19 AD08's on my front OEM ZCP's with a 10MM Spacer which made the front offset at ET21. I rubbed the same way you talk about; at 3/4 left or right and you get the loud "brrrrrrrrp" sound of rubbing. Now I know the ad08's run much more square and wider than other tires but the fact is you are going with a wider and taller tire.
I got so annoyed with the sound i went down to 245/35/19 ad08's and I have stopped rubbing since. The 245 ad08's are quite a bit more grippier than the ps2's i had on stock so I am quite happy with the performance. The 255's felt kind of numb in comparison with the 245's so that is another reason why I'm happy to be back on 245's.
Peanut Butter Chunky
AD08. Akra. Huper Optik. KW V3. Macht Schnell. RE SSK. TMS.