There is only a loss if there is an attempt re-splice them There are amplifiers to boost the signal. Using short 1/8th long pieces would have no light loss, especially if you polished the ends. I was an electronic technician for many years. My data could be dated as technology changes. The return losses on some splices can reach 30 to 40 db. There are manynew standards which have nothing to do with what we are talking about. My point was that by manipulation of the light receiving ends, you could have lights of different intensities, which would add some realism. Even using a Sharpie could reduce intensity and color. I am not an engineer but have had to work with these devices, more in their infancy. That I offer suggestions that's all. Mercedes Benz was using Fiber Optics to light their dashboards in 1972, so there is nothing new here. That doesn't mean it isn't "neat and cool" looking though.