Doug (and Adeep42),
Whatever the rights and wrongs, it is not helpful to state that the method Lederman uses somehow negates the fact of what he says about cartridge wear. The "appeal to authority" would concern the fact, if it is true, that:
every re-tip he would do ,the cartridge would be worn real bad on one side due to wrong anti-skating.not whether, in contrast to the VPI designer, who, as you say,
prefers the sonics of his tonearms with no A/S gizmo (rather like Stringreen, Dopogue and I).
One is a matter of fact, like the existence of skating forces and their consequences; the other a matter of preference.
John
.