For a clean looking vertical stabilizer, I mounted the S75 servo right inside the stab. This required a slight cutting of the bottom stab opening and a small balsa wedge to hold the servo in place.

The pull-pull elevator linkage is connected with short runs of Firewire fishing line to the Du-bro 2-56 Swivel Ball Links and a Sullivan 2-56 Steel Stud that runs through the rudder.