My Rambouillet has an A23 O/C in back and a Mavic Open Pro in front. I ride with Challenge Parigi-Roubaix tires which are labelled 27mm, but measure between 29mm and 30mm. The brake calipers are Shimano R600. With the rear I can get the tire out using the brake cable barrel adjuster and the QR lever. But since the Open Pro rim is narrower than the A23, I also have to use the QR button on the Campy Ergo shifters to get the wheel out.
So while I ostensibly have QR brakes on my bike, the reality is "not so quick" release.
PJW