I never use the servo AF mode to have the camera "follow" a moving subject. I was curious if using it with image stabilization can have any conflict. The camera and the lens manuals don't say anything, but I wonder if you guys have any advice about this.

I would be specifically interested in results with Canon 400D/XTi and Canon lenses 28-135mm and 55-250mm, but experiences with any other setup are interesting.

I am thinking specifically in wildlife photography.