In both cases the consistent mass formulations lead to non-diagonal mass matrices. The eigenvalues from the two formulations of a model should be similar, but not necessarily equal. My browser can't read the compressed data files.
Visualizations Click on image to get an enlarged version.
Click on label to get an explanation. 538847 bytes Matrix Statistics Click on label to get an explanation. 44.11 46.56 Top 10 out of 159 nonvoid diagonals.