I've been doing a little landscaping for some extra money-new home construction type. On the yards with little grass I usually till, boxblade and level. BUT on the yards with wild grass already growing when I till it and then boxblade the blade fills up with clumps of grass. No matter how many times I till I still have too much grass that clumps up. Is there a different attachment that will work better? I will still need to boxblade to level the lot. Thanks for any replies. Billy