Socoaste
I exchanged e-mails with Frank Schroder regarding armwand lengths. Longer arms have less tracking distortion. However, longer arms are not as rigid and more prone to vibrations. It is a trade off. Frank feels that for his arms, the 9" (222mm) is the best compromise. I had originally wanted a 12" arm. Frank talked me out of it. YMMV
I exchanged e-mails with Frank Schroder regarding armwand lengths. Longer arms have less tracking distortion. However, longer arms are not as rigid and more prone to vibrations. It is a trade off. Frank feels that for his arms, the 9" (222mm) is the best compromise. I had originally wanted a 12" arm. Frank talked me out of it. YMMV