I can't break the Bridgestone RE 730's loose either, only in first no chirp /nothing in second. The Kumho's on my Enkei's will break loose a little in second if I really get on it hard. I have wondered if its the tires, my driving or my car ?

 

yeah, those potenza's are suppose to hook pretty good. i still haven't made up my mind with those the kdw's, and the firehawk sz-50's. i am sure i will be fine with anyone of these though.