System is a go!!! It works very well.
Now I must get busy building the C310.
I discovered that I cannot use Futaba servos and a JR radio using this Twin Sync System! Both components must match and the servos must produce a wider pulse at high throttle. All stated in instructions......
I've never has any trouble mixing servos until now. Electronic devices told on me! Lesson learned......

It's very impressive to hear both Saito 120's running the exact rpm. From idle to full bore. Sure, you cannot slam the throttle to the floor, but who does this in a scale plane anyways. You can however progress the throttle stick plenty fast enough.

Twin Sync System from EMS/Jomar, it works! Thanks Mark for all your help!
Perry