  The extended Gari-Krumpelmann (GK) model of nucleon electromagnetic form
factors, in which the $\rho$, $\rho'$, $\omega$, $\omega'$ and $\phi$ vector
meson pole contributions evolve at high momentum transfer to conform to the
predictions of perturbative QCD (pQCD), was recently shown to provide a very
good overall fit to all the nucleon electromagnetic form factor (emff) data,
including the preliminary $R_p$ and $R_n$ polarization data available in 2002,
but excluding the older $G_{Ep}$ and $G_{En}$ differential cross section data
that was inconsistent with the $R_p$ and $R_n$ data. The recently published
final version of the polarization data of the electric to magnetic ratio $R_p$
differs little from the preliminary values for the former, but the new values
of $R_n$ are midway between the preliminary values and those inferred from the
differential cross section data and the Rosenbluth separation. A new fit of the
parameters of the same model has been made with the final $R_p$ and $R_n$ data
replacing the preliminary values and the addition of some new $R_n$ and
$G_{Mn}$ data. Again there is a good fit to all the data when excluding the
differentialcross section data that is inconsistent with the polarization data.
This includes a very good fit of the $R_p$ data, which was not possible when
the differential cross section $G_(En)$ data was used in place of the
polarization $R_n$ data. Thus the change between the preliminary and final
$R_n$ data, while substantial, has not impeded the good simultaneous fit to the
neutron and proton data. The parameters, fit to the data and predictions of the
new model are compared to those of the previous models. Low momentum structures
that appear in some data analyses are partially reproduced by the model.
