I've taken your sage advice and ditched the RFs and went w/ the 225/255 setup. Just got the car back tonight after being on vacation and have only had a chance to put 15 miles on her. I did not experience any tire rub.
The PSS stick like bubblegum to hot pavement and the ride is much, much better.
I do have a question though. What tire pressures are you running them at? I realize that everyone has different opinions on that, but I'm kind of looking for a baseline to start.
The slightly wider tire w/o the run-flat option will probably change suggested tire pressures would it not?
2010 135iS Coupe (Titanium Silver/ Black)
1995 993 Coupe (Midnight Blue/ Black)
1995 993 C4 Cab (Silver/ Green)