  Using graphs plotted from the Mathematica notebooks posted with our paper
``Dynamical Gravastars'', we show that a dynamical gravastar has no hard
surface, and that a second light sphere resides in the deep interior where
there is maximum time dilation. These facts may permit dynamical gravastars to
evade no-go results for exotic compact objects relating to light leakage inside
the shadow, and nonlinear instabilities arising from an interior light sphere.
Testing these surmises will require further detailed modeling calculations,
beyond what we commence in this paper, using the numerical dynamical gravastar
solution. We also discuss the effect of replacing the sigmoidal function in the
gravastar calculation by a unit step function, and we analyze why the dynamical
gravastar evades the singularities predicted by the Penrose and Hawking
singularity theorems, despite satisfying both the null and strong energy
conditions. We then give a simplified two-step process for tuning the initial
value $\nu(0)={\rm nuinit}$ to achieve $\nu(\infty)=0$, and give exact
integrals for the pressure differential equation in terms of $\nu(r)$ in the
interior and exterior regions. Finally, we briefly discuss an extension of the
model that includes an external shell of massive particles.
