Was just trying to figure out how significant it is for the 4700 Tiagra to share the same cable pull as the 11sp systems.

Does this mean you could run 11sp 105/Ult/DA shifters with a Tiagra 4700 rear mech? Can the Tiagra rear mech handle an 11sp cassette?

Does this mean you could run 4700 shifters with 105/Ult/DA rear mech (just leaving an unused cog)?