Wgeffon is correct, He is using a tiller arm bellcrank, If you care to see my Edge with pull-pull on the elevator and rudder here are the links. I used two digital 8411 servos, 1 for the rudder and 1 for the elevator. I have a carbon fiber rod running from the servo to the bellcrank, then the pull-pull wires connected to the bellcrank, servos are slilent in the neutral position. I know it is hard to tell how the wires are connected but I can't get a better shot because of the location in the fuselage.

http://users.ev1.net/~scoplin/eservo.jpg

http://users.ev1.net/~scoplin/ebell.jpg

http://users.ev1.net/~scoplin/etail.jpg