i am looking at ways to cut down on rocks and objects flying out from under a deck......dont want a full plate block although i did make one out of 2 car tags....painted it and it worked fine i just dont want everything kept under my deck.....how about hanging short pieces of small chain from my chute flap like you see around the discharge on bush hogs or flail mowers......or a piece of heavy duty mesh wire attached to the chute flap.....these would still allow airflow and discharge but i think would stop rocks from sailing out....any body ever done this?