Can you explain what they are and what they do? They do sound cool.
BJ Swope
There a few good reasons to use these,
One the signal wire from the rx to the servo is replaced with a fiber optic (light beam) no interference from within
Two, one of the biggest problems with modern rxs the signal voltage is very low , long leads makes this a problem, with the F.O. you get the full voltage of 6 to 7.5 versus 3 volts. , did you ever try Y connecting 3 servos , won't work but with Fiber Optics, I have tested up to 7 servos, with no issues. not that we Y connect them today with our radios but you get the point,
The biggest part is you totally optically isolate the servos from the receiver, the receiver gets its own battery so no power spikes from heavy duty servos, and the servos get there own battery/s If a servo goes bad, normally it would feed back to the rx and you would go into failsafe, and crash. but with this the bad servo can't ever feed back to the rx, because it has its own power and totally optically isolated from the receiver