Do Miss Chances Stack?

[shatner]

I'm curious about the interactions of layered miss-chance spells/effects such as luck and mirror image.

For example, say an A2S1 caster casts the following spells on themselves:
+ Personal Luck (grants luck)
+ Body Ethereal (grants ethereal)
+ Mirror Image (grants 4 images)
+ Air Shield (80% resistance to missiles)

Now assume an arrow is shot at the caster and would hit were he not layered in spells. (In theory at least) To hit, the arrow would have to:
+ bypass air shield (1 in 5 chance)
+ bypass luck (1 in 2 chance)
+ bypass ethereal (1 in 4 chance)
+ hit the real caster and not one of his 4 images (1 in 5 chance)

That's a 1 in (5*2*4*5 = 200) chance, or a .5% chance of success. In theory.


However, do all of those effects stack like that, or do some effects override others?

Also, how many duplicate images does glamour provide for a unit without air magic? How many for a unit WITH air magic?

Thanks.