Penetrating vs. Breakable Foci

[prestidigitator]

For breaking Breakable Foci (6E1 pp. 378-379), is the important part whether an attack does more Body damage than the applicable defense (PD/ED), or that at least one Body damage get PAST the defense. In other words, will any Penetrating attack easily break every Focus that doesn't explicitly have Impenetrable defenses?

[Steve Long]

Yes.