  Smearing the gauge links of dynamical configurations removes small scale
unphysical vacuum fluctuations and thus improves the chiral properties of
lattice fermions. Recently we proposed the hypercubic smearing (HYP) that
improves the flavor symmetry of staggered fermions by an order of magnitude
with only minimal distortions at small distances. We describe a new algorithm
to simulate dynamical HYP fermions based on the standard pure gauge
overrelaxation and heatbath updates. The algorithm has been used to simulate
four and two flavors of staggered fermions. Unlike standard dynamical
simulation techniques, this algorithm does not loose efficiency at small quark
masses.
