They'll work just fine but the Bibby Pro is not really a ski I would consider for a backcountry setup. That would be more of a sidecountry setup and in that case the Dukes would probably fit the mold a bit better. That being said, I took the Dynafit plunge and had them mounted on some Mantras which work great and of course I also have another pair on some Stokes which for pure touring work even better. I think if you try Dynafit and tour a lot there is no better system, and the FTs will bear that out.