I've used size 9.5 for the CB2.3, CB4.3, Vapor 9, Big Shots, Barricade 6 & 7.
I ordered the 9.5 for the Air Max Cage and found they're just a little longer in the toe area. Every where else in the shoe feels fine, but the there's like an extra .25'' extra just in the toe box. If I could downsize to 9.25'' I would. I use orthotics which help fill the inside of the shoe and I don't mind wearing 2 socks if I need.
Custom weighted Babolat AeroPro Drive 2013