I'm not sure if that will help, but you can try to set the
mak at runtime (MovieClip.setMask()) - I'm not even sure if that is
"leagal" with components, but setting a (rectangular) mask wia
actionscript is the only way to mask device text, and that should
be part of your component.
Watch out rot problems of depths-order though, as depth
management with component (v2) is different from "normal" depth