All I have ever used is the [link=http://www3.towerhobbies.com/cgi-bin/wti0001p?&I=LXD858&P=0]Dubro pull-pull.[/link] The cable threads through the rigging couplers, then wound throw the crimp. The rigging couplers are threaded and the clevises screw on to them. A locknut is also used on the clevis/rigging assembly.