>Heya George -
>here are my results - its an old beater machine -
>450 P3 with 384 megs o Ram, 48 megs free space C, 650 megs free space D [where test was run].
>

>Record#    EMPTYLOOP   WITHMDOT   WITHOUTM WITHFASTER  NETDIFF
>1          0.250000    3.555000   3.555000 .F.         0.000000
>2          0.201000    3.305000   2.864000 .F.         0.000000
>3          0.210000    4.186000   2.784000 .F.         0.441000
>4          0.200000    3.766000   3.254000 .F.         1.402000
>5          0.221000    3.375000   3.334000 .F.         0.512000
>6          0.311000    5.047000   2.744000 .F.         0.041000
>7          0.210000    4.567000   2.884000 .F.         2.303000
>8          0.210000    3.545000   3.736000 .F.         1.683000
>9          0.210000    3.535000   3.024000 .T.         -0.191000
>10         0.241000    3.615000   3.064000 .F.         0.511000
>

>
>Enjoy !
>Mondo regards [Bill]

Thanks for the feed back, Bill. I'd suggest using a the following, however. (Many thanks to Cetin for pointing this out).

m.netdiff = m.withmdot - m.withoutm

This should fix the erroneous results shown in the first two instances.