For bamboo, a carnuba wax product is recommended and for fiberglass and graphite, most any car or boat wax will give great protection to the top coat finish of the rod. Pledge is recommended by a lot of folks and for one thing, it is about the slickest stuff to come along. Saw an Officer candidate once wax his floor with it and when the inspector hit the wax and then the floor the candidate knew he was in bad trouble. I suspect that slickness may help when shooting line. At any rate it's the UV, and other rays from the sun that does the damage and one had but to look at a fiberglass boat that's seat out in the sun too much to see what happens.