I'm glad to see some responses, I am in the same boat as well, I was looking at the Akebonos but they add some pretty serious unsprung & rotational weight, making me start looking at other choices. From reading around it seems that a proportioning valve is a good idea no matter what you do to get proper bias. I'm hoping to give some input after getting some new wheels and R compound tires and doing some track and autocross events this spring/summer.