Dear Henry, I am a bit puzzled about a recommendation for a specific headshell offset angle to go along with the recommended P2S distance and overhang for the 64S. In the case of headshell offset angle, isn't one "stuck" with the built-in angle? In other words, I believe that both tonearms are S-shaped such that the orientation of the plug for the headshell pre-determines the offset angle. If that angle is not the above recommended 20.5 degrees, how do the other recommended parameters work? I am guessing that the built-in angle is 20.5 for the 64S, and there is no problem, but it would be good if you can confirm that. Anyway, I've got a UNI with the 64S template.