  Using the concept of cracking, we have explored the influence of density
fluctuations on isotropic and anisotropic charged matter configurations in
General Relativity with "barotropic" equations of state, $P = P(\rho)$ and
$P_{\perp}= P_{\perp}(\rho)$ and a mass-charge relation $Q=Q(\rho)$. We have
refined the idea that density fluctuations affect physical variables and their
gradients, i.e. the radial pressure and charge density gradients. It is found
that not only anisotropic charged models could present cracking (or
overturning), but also isotropic charged matter configurations could be
affected by density fluctuations.
