This typically will provide greater sustain and will help the string last longer. We have quality control measures in place at every step of the manufacturing process. The core wires and plain strings are inspected for spotty wire and for tensile strength. The wrap wires are all inspected on the spool for tarnish and inconsistencies. If we discover bad wire - we generally reject the entire spool.
All finished product is inspected by hand before being coiled.
All of the machine operators are trained to watch for wire inconsistencies. With an experienced staff - many quality issues are dealt with long before the packaging process. Generally, if there is a bad set, it is due to a defect in the raw material that could not be detected. As much as we hate for this to happen - it does from time to time. There are a few ways to know if you have a bad string.