Hi, I got a question about this.

UNIQUE MODIFIER states: "This effect can’t modify the specified combat value(s) if
they are already modified by this same effect.", for example Everett K Ross from ABPI.

My question is, this means I can use the same UNIQUE MODIFIER twice on a figure as long as I choose to different combat values?

Thanks in advance

Page 10 of Comprehensive Rulebook

So the answer is "no".

You can have multiple different unique modifiers, but "I'D JUST SOLD MY SOUL FOR A PAIR OF PANTS" can only be applied to your character once, even if you want to use it to affect different combat values.