I received my blowout kit for my 42" Sport today (package included drill template, baffle, and hardware). It appears to be a piece of angle iron about 8" long that mounts inside of the front edge of the mower deck and is height adjustable. I mounted it so that the baffle is flush with the outer deck wall. What does the "lip" due to improve the quality of cut? What are the effects of lowering the lip below the bottom edge of the deck? Thanks!