Hi

I have a Katana 140 ARF and would like to know if it is OK to use a regular ball bearing servo as a gas servo. It is because the servo is so close to the engine, attached to the engine box, that I am afraid vibration can break it with the past of some time. I am not a servo expert and I considering to buy a metallic gears instead.
It is ok as it is now??
Do I over worried??