  We examine one-flavour $SU(N_c)$ gauge theories, where $N_c$ denotes the
number of colors, with one fermion in the antisymmetric representation as a
candidate to approximate $\mathcal{N}=1$ super Yang Mills due to their
equivalence in the large-$N_c$ limit. Summarising results on spectral
evaluations of $N_c=3$, we will report on the progress of dynamical
calculations for $N_c>3$. We discuss cut-off effects and challenges in
configuration generation.
