  Let $f : G \to H$ be a Lipschitz map between two Carnot groups. We show that
if $B$ is ball of $G$, then there exists a subset $Z \subset B$, whose image in
$H$ under $f$ has small Hausdorff content, such that $B \backslash Z$ can be
decomposed into a controlled number of pieces, the restriction of $f$ on each
of which is quantitatively biLipschitz. This extends a result of
\cite{meyerson}, which proved the same result, but with the restriction that
$G$ has an appropriate discretization. We provide an example of a Carnot group
not admitting such a discretization.
