Does Your Axe Need Sharpening? It happens. Over time, those strings and long scales add up to a ton of pressure and slowly but surely, things settle. Over time, that rocking silky smooth low action and dead on fingering is not so silky or dead on. Time. It gets us all, even our beloved guitars. If your acoustic or electric is in need of a tune up, Chupacabra Guitars in El Granada would be glad to help you out. We also do repairs (neck re-sets, cracks, loose braces, etc.) and custom builds and the value of this certificate may be applied to set-ups, tune-ups, repairs, or a custom build.