>the correct route is added again.  What's really needed is a way to
>force the new route to take precedence over a cloned route atomically.

I've got the same problem, that's why i respond.
Can this be done on the user-level or does it need code-changes?
Is the "take precedence over a cloned route" the way it should work, does
it work like that on other Unix-es?
~n