  GJ 65 is a M dwarf binary system consisting of the two flare stars BL Cet (GJ
65A) and UV Cet (GJ 65B). Two teams of investigators have recently reported
total magnetic fluxes corresponding to fields of 4.5 and 5.2 kG for GJ65A, and
5.8 and 6.7 kG for GJ65B: for each component, the magnetic results obtained by
the two teams agree with each other within 1{\sigma}. For the first time, we
can directly compare the predictions of our magneto-convective models, based on
fitting observed stellar parameters, with measured field strengths. We find
that our models agree with the observed field strengths provided the effects of
finite conductivity are accounted for. Thus, GJ65 provides us an opportunity to
use observations of field strengths to distinguish between the predictions of
our models that assume perfect electrical conductivity and those that allow for
finite conductivity.
