Within numerically exact solutions of the Bogoliubov-de Gennes equations, w
e demonstrate that discrepancies between predicted low-energy quasiparticle
properties in disordered 2D d-wave superconductors occur because of the un
anticipated importance of disorder model details and normal state particle-
hole symmetry. For the realistic case, which is best described by a binary
alloy model without particle-hole symmetry, we predict density-of-stats sup
pression below an energy scale which appears to be correlated with the corr
esponding single impurity resonance.