Depending on the abuse 3 to 5 hundred shots and another factor to getting speed/power and adding additional time on the tubes has to do with how quickly the release happens. The quicker the release the better it is.Just about to sit down and put on a new set myself. They don't last long in the heat and the sun.
That's good to know, Bill. I have been keeping your sheets in a ziplock in a cabinet and tubing in a stainless gasketed cylinder. Neither are in the fridge.I think Cap is talking about UV damage. The thinner the rubber the faster the UV damage from the sun. Remember to always keep your Bands in a cool dark place when not shooting. If carrying a slingshot with you keep it in as dark of a place as possible. When I carry one, I like to carry mine in my sock under my pants. In cooler weather I carry mine in reach through front sweat shirt pocket. At home I keep shooting slingshot on the floor In a tin container, The rubber that I sell I keep in the refrigerator, but do not freeze. -- Tex