When the OCDC is in the down position, it blocks the grass, right? If I don't have mulching blades and the grass can't escape, what happens to it? Does it just clump and lay on top after you pass? I had a Snapper with a mulching kit, which consisted of ninja blades and only a baffle covering the discharge opening. It didn't work at all. Wouldn't the OCDC have a similar effect? Thanks.