Here's my take on Anderson squats and to be honest I agree with fazc, you have to use your head on this one. This is simply a movement to strengthen your main movement. I believe that it should only be used in that capacity. It would be like saying because you can board press 500#that your actual bench is 500#. . . Sorry no sir its not. It's a strengthening tool and should be treated as such.
experimentation is a good idea with this lift, I have used this lift in a variety of positions with different bars.