  We report the observation of commensurability oscillations of hole-flux
composite fermions near filling factor $\nu=1/2$ in a high-mobility
two-dimensional hole system confined to a GaAs quantum well, and subjected to a
weak, strain-induced, unidirectional periodic potential modulation. The
oscillations, which are consistent with ballistic transport of fully
spin-polarized composite fermions in a weak periodic effective magnetic field,
are surprisingly strong and exhibit up to third-order minima. We extract a
ballistic mean-free-path of about 0.2 $\mu$m for the hole-flux composite
fermions.
