My father ran uneven lengths of NACA5 from a 250 to 12inch Tannoy Golds. Sounded fine. I then upgraded and had some even lengths of NACA5 and substituted for his. He thought the improvement very noticeable. Went back to his old cables in case changing cables had cleaned contacts, sounded worse to him (I agreed btw), so returned to the equal lengths.
Nic P
Nic P