  We extend the study of the effect of static primordial black holes on vacuum
decay. In particular, we compare the tunneling rates between vacua of different
values of the cosmological constant and black hole mass by pointing out the
dominant processes based on a numerical examination of the thin wall instanton.
Three distinct cases are considered, namely the nucleation of a true vacuum
bubble into the false vacuum, the nucleation of a false vacuum bubble into the
true vacuum as well as the Farhi-Guth-Guven mechanism. As a proof of concept,
it is shown that in order to increase the transition rate into an inflating
region, we find that not only is the inclusion of a black hole necessary, but
the inclusion of a cosmological constant in the initial phase is also required.
Among the cases studied, we show that the most likely scenario is the
elimination of inhomogeneities in the final phase.
