The "Zap"

Not my favorite term for the technique... I prefer calling it the "conditional CD away"/images/icons/tongue.gif but in general, the snapping back into a retreating crouch from "switch to open stance attack" is what I'm talking about (maybe I messed up on defining its conditions?).

I do see some players exploiting it. Anyone care to discuss (or explain) its uses and abuses? When it's a good tool (when it would be a better option than the other "natural" alternatives)? If it's a good tool?

-Chanchai