There are lead spacers that are available as well as heavier mountings screws. Sound Smith sells the mounting screw sets made from different materials that allow for the adjustment of mass.
Mass, as seen at the cantilever, can be placed anywhere on the arm. But adding mass at the headshell is more effective than close to the pivot.
Mass, as seen at the cantilever, can be placed anywhere on the arm. But adding mass at the headshell is more effective than close to the pivot.