Semi-Flex cable. Running through the yellow nyrod tube. Solder the brass threaded end on and screw on the Du-Bro ball link clevis (hooks to the throttle boby). 2 ways to do the inside part..... 1) tin the cable and run it through one of those adjustable things on the servo arm, with the set screw. This allows me to switch from Nelson to Super Sport Jett 40. 2) just solder a metal clevis on, which is how all my Vortex's are done. But I only fly that plane with a Nelson, so there is no need to have any adjustablity. Just as long as it's made the correct length to start....

As always though.... 20 ways to skin that kitty...

Randy