Are there any mulch kits with fully enclosed baffling for a 5 or 6 year old 42" stander. Just picked up used 42" stander with 15hp kawasaki, gator blades, and 311 hours on the meter. Mowing with the discharge chute leaves too much grass on top of lawns, so I covered the discharge opening with a piece of plywood temporarily to see if it would cut the clippings up more. Well, it was a little better but left rows of clippings along the right side of the deck while mowing. So, I am looking to try some other blades and a mulch kit. Any suggestions?