[UA] Mathematics of focus shifts

[Nikodemus Siivola]

Despite the subject I haven't done any real math on the subject, just
run a few simulations.

However, it turns out the focus shift is _always_ a bad idea unless

  your skill is lower then the other guy's AND
  you have a gun or a melee weapon with +6 damage bonus or greater.

(Or my simulations are flawed, of course. No claims to omniscience
here.)

I'm not sure what to think of these results yet. OTOH, I kind of like
the fact that superior skill should not try to outdo itself -- desperate
acts make sense only to the underdog. ...OTOH, I really don't like the
negative effect of focus shifts when fighting barehanded or with a +3
melee weapon.

Just thinking out loud.

Cheers,

   -- Nikodemus