  Within the framework of light-front field theory, we reassess the
electromagnetic form factors of the pion and kaon. Comparison with experiment
is made for the full range of momentum transfer, q^2<0, including recent data.
The light-front model's single regulator mass, m_R, of the \bar qq bound-state
vertex function is initially adjusted to reproduce the weak decay constants,
f_\pi\ and f_K, and both meson's charge radii, r_\pi\ and r_K. We study the
behavior of these observables under variation of the quark masses and find an
optimized parameter set, m_u=m_d, m_s and m_R, for which they are in sensibly
better agreement with experiment than in a previous analysis; a feature also
observed for the elastic form factors, in particular at small q^2. This model
refinement is important in view of an extension to vector and heavy-light
mesons.
