Z-bends are definately the most reliable form of connection.
However, unless you are superbuilder, youll need some form of adjustment @ the other end, controll surface, throttle, ect..
Here I like soldered clevices.
If you dont want to go that route. Nylon or Metal clevices which screw onto the end of the threded pushrod work nicely and give you a fair amount of travel for adjustment, just be sure you cut a small peice of fuel line 1/4" or so and slide it on the pushrod before connecting, after making the connection, slide the fuel line over the snap together end to prevent it from coming apart, DONT leave this step out.

Have a nice day
Roger