S. Cowell Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico, 87545, USA (Dated: December 6, 2005) The modern theory of neutrinoless double beta decay includes a scaling factor that has often been treated inconsistently in the literature. The nuclear contribution to the decay half life can be suppressed by 15-20% when scaling factors are mismatched. Correspondingly, 〈m...