Question: I have my own favorite control rod system that I would to install on my VMAR ARF. Can the VMAR factory control rod system be changed?

Answer: Yes

Better Answer: Yes, we use a plastic or metal inner rod sliding in a plastic outer tube. The outer tube will accomodate the inner yellow splined plastic rod from Sullivan. The Sullivan inner rod will in turn accept threaded metal rods or studs which can engage with either plastic or metal clevises. To install your preferred system, simply remove the clevises or EZ connectors from the factory rods and gently pull the factory inner rods out of the fuselage. Then install your preferred system.