The S-works and pro both are shimmed to 30.9 from 34.9 . The expert comes with a standard 34.9 dropper. Post #2 for more info.
I do have a order on a expert, comes with 34,6mm dropper, and I want a axs, so I just wondered if the sworks/pro was same size in frame, but with a shim. You can see the shim if you take the axs dropper out.