quattro handling dynamics at the edge

[lws at o-o.yi.org]

Hi, I have a question about driving a Quattro when you start to lose
traction.

The rule of thumb for RWD is to back off the throttle when the rear comes
around, and with FWD the rule is to hold steady as long as you still can
feel traction through the steering wheel.  What do you do with quattro,
when the balance keeps dynamically shifting back and forth?  Do you get
any warning that you're about to totally lose traction before all hell
breaks loose?
Or does the car just handle fine, right up until the moment it doesn't?