That’s a sweet interior, what year?
I never saw the need for a Vernier mixture control on a carbureted airplane. Especially one a simple as a Cub engine. Are you guys rolling it lean of peak?
Old cable would vibrate and move over time.
?
...pull mixture cable to full lean position, go in engine compartment and kink mixture cable. Now it will bind in working position ….
For what it's worth, I have a vernier cable on my throttle....