WC strings are great strings. The process they use to build the strings is now duplicated by many string builders out there. Materials used are 8125, TS-1, UltraCam and a few others. These materials are of very low string stretch and are far superior to that of factory string (some already use this material) You should be able to find a reputable string builder for about half the cost. WC...you can have in less than a couple of days.