Three clicks should do the job, but if all you have is three clicks, you need to make all available cable travel count. I would set the inner limit before you clamp the cable, so that the fed is poised to move at the first whiff of cable pull, and that cable needs to be tight - like guitar string tight (slight exaggeration, maybe...) - even when the FD is sitting against the inner limit. Do what you can to make it as tight as possible