Mecanim shoot and run straight problem

Hi,

I am trying to make a character thats runs and shoot in a
straight line using mecanim. I'm using the "follow" script from the
mecanim tutorial (with the bears) and bought the shoot
anim from here.

It is a simple shoot animation, with an upper body twist to aim.

Issue is the following:
the shoot animation moves the legs of the avatar (to aim).
I tried 2 layers of animation, but then the shoot animation moves
the character in the wrong direction [tried both overwrite and additive modes].
I also tried masking the upper body of the avatar, but then the shoot is done to the left, not straight.

Any ideas ? The issue is not this specific animation, but any one dealing with body move (which is typical to shooting).

thanks best
danny