In Kevin Brown's last update post, he mentions using 205 with a black/grey finishing pad using the KBM method with this combo. Why is it nesessary to use KBM method for a final polish with such a soft pad? Why can't you just do the final step the old fashioned way? Is there a difference in shine or pop? I guess I just thought after removing the defects you could just burnish the paint with a DA same as usual. Any thoughts?