Pretty simple - can we get an "armor_lost" event condition, just like the "health_lost" one? Seems pretty easy to do, in theory.
I was just working on a Droideka model and hooked up my health (via a weapon, not in PAC) to never decrease while I have armor - and immediately discovered that the event I used before to play sounds and visual effects of the deflector shield no longer works, since I do not lose health on hit.
For that reason BTW, if anyone can come up with an alternative method of detecting incoming damage, I'd be much obliged.