On rereading Wildstar's last note I realised that he did include
the black globe for armor mod.
My original reference was not that meson screens are not cost-effective, but
that they in themselves confer no advantage to larger ships. A factor-9
screen can be mounted on a under 10kt ship and changes the probability
picture of above combat dramatically.
The agility DM becomes far more important and forces a smaller is
better philosophy.
Planetary Bombardment:
Scott kellogg and Rob Dean pursued the rocks as bombs theory to
great lengths whereas it was proven that a small lead bullett could
be used to "crack" an entire world ( given enough initial velocity).
It is virtually indetectible and a Type S could do it.