Before this starts heading down the wrong street....
http://www.atpflightschool.com/jobs/index.html#pay
The instructors I know are super happy with this. They did a 2 month side by side comparison and virtually everyone made a significant amount more money. After 2 years of teaching at ATP, i would have been thrilled to get those kind of bonuses. I was always proctoring for others, I only got $40 for most of my checkride passes because I was the add-on guy. I also flew the most, but often made less in bonuses. This new system puts money in your pocket and gives you more control over how much you can make. If anything, it is moving more toward what a traditional instructor makes (strictly hourly).