I have the LED signals installed and the large CalSci overlaps on these quite a bit, but it does not reflect back. The LED signals are brighter than the OEM incandescent ones, but they do not function as running lights, so, if anyone has the large CalSci with the OEM signals, perhaps a report from them would be of more benefit.gunny said:I have a question regarding the Cal-Sci windscreens. In the pictures, it appears that the lower "ears" of the screen overlap the running lamp/turn signals. It seems to me that this would cause a glow across the back of the screen that would be very distracting (especially when riding at night). For those of you who have actually installed and rode with the medium/large/X-large screen, has this been a problem?