Keeping the same length is the “correct” thing to do. I have just always stuck with the rule. Once I had heard the huge differences in interconnects and cables... and had gone through extensive (hundreds of hours of) comparisons carefully noting the differences that they made on components, and found sonic differences in stable platforms... I just dicided it was easier to go with the conventional wisdom instead of testing and proving it to myself. After all, it is just a yes or no question. Just safer to keep them the same length. I have read professional reviewers say why it is important.
