From Forbidden Arcana:
<Snip>
Pacifist Adept:
...
10 Karma: Any attacks that would cause anyone, within a number of meters equal the adept's Magic Rating has its associated limit reduced by 2...
...any attacks against the Pacifist reduce the number of 1s needed to glitch by one.
15 Karma: Any attempts to cause harm (Physical or Stun) performed by anyone, or at any living being, within a number of meters equal the adepts (Magic Rating x2) have their limit reduced by 4...
...Any attacks against the Pacifist Adept or made by the Pacifist Adept reduce the number of 1s needed to glitch by three.
<snip>
So my question - do these stack if there are multiple Pacifist Adepts?
First Example: Two Pacifist Adepts standing behind a gun bunny as he tries to mow down some bad guy in the distance. If one was a level 10 Pacifist, and the other a level 15, and the gun bunny was in their 'area of effect', would the limit on his gun go down by 4 or by 6?
Second Example: An enemy mage decides to hurl a fireball at the two pacifist adepts. Does the number of 1s he needs on his Spellcraft roll to glitch go down by 3 or by 4?