  Methods are presented allowing a realistic, experiment-based simulation of
low-mass quark pairs coupling to a virtual photon. Differential cross-section
reweighting factors allow to reproduce the resonant structure observed near
quark pair production thresholds, and an algorithm is proposed that allows
hadronization of the light quarks in the very low mass region, where existing
theory-based models are expected to break down. The corresponding routines can
be embedded in two- and four-fermion generators for e+e- machines.
