With 27mm bar on, the outer front corner of the the car would dip 30-60mm mid corner. If I was to tap the brakes the car would dip maybe another 10mm extra. When I fitted the 30mm bar, it would only dip 20-40mm mid corner. That fact that it lifts the inner rear wheel doesn't really bother me, It's more the fact that once it does the wheel that is still on the ground seams to have very little grip. So what I'm after is a way to increase the mid corner grip of the outer rear wheel. I have tried the factory rear bar with 30mm front previously and the car didn't fell very stable through the corners at all, It was like the back just wanted to slide every where. A few of the other racers suggested that -1.5° of camber in the rear should fix it, but the trade off being less traction in a straight line. Whether or not it's true, I don't know. Regards Mitch