Iwas going over my bow tonight in it's final preperations for next weeks opener and discovered that one of my fibers was broken on my sight. Clearly explains why the bottom pin was always so dim. Well I managed to remove the old broken piece and was able to thread new fiber into the pin. How do I cut the excess now so that it won't fall back through the pin hole? was going over my bow tonight in it's final preperations for next weeks opener and discovered that one of my fibers was broken on my sight. Clearly explains why the bottom pin was always so dim. Well I managed to remove the old broken piece and was able to thread new fiber into the pin. How do I cut the excess now so that it won't fall back through the pin hole?