D’Addario’s color-coded ball-end system works for standard sets with fixed gauges and positions. Offering it for fully customizable sets—with all the variety we are offering in terms of alloys and gauges—would require 9 to the power of 263 (9^263) unique ball-end-string combinations—an impossible number to manufacture.*
But don’t worry! We’ve attached colored ball-end stickers to each string position so you can restring your guitar confidently.
*Not an exaggeration. 9^263 is so astronomically big of a number, imagine trying to play every possible riff ever made, using every note, tuning, string gauge—on every guitar ever made, for eternity—and still not even scratching the surface. THAT big.