You could use the one you showed but I prefer this one.
http://www2.towerhobbies.com/cgi-bin...&I=LXK090&P=ML
Alignment less critical.

Mount the ball on the throttle arm. Solder the threaded adapter on the end of the cable. Let the solder wick up the cable a little bit but do not allow it to increase the cable diameter. Only looking for slight stiffening. Cut outer tube to a length where it does not interfere with threaded adapter movement. Easy to do. Pops on and off easily when needed.