I ran my stock's gold for a while and kind of miss it..
The other problem I am running into is current set up is on 225/40/18 so anything in the 9's will start stretching the tire. Which I don't mind, but do not want to go to extreme since I have experienced first hand what really stretched tires on awesome DC and Virgina roads with pot holes can do.... I am also considering Enkei RS05RR or the RSM9. I am not sure to go back to concave, stay with deep dish style, or get a combo of both and go with something like the Emotion X9R's or 11R.