Finally, get even and balanced response from all of your strings! Engineered to compensate for the structural design weakness of the 2-post adjustable bridge, balancing string response differences over the arches versus that of the feet. String gauges have been determined by download on the bridge, improving string-to-string response. Gauges 0115 016 024w 039w. The E and A strings are plain round core, and the D and G are hex core covered with a phosphor bronze wrap wire.