I have about 1/2 acre lot. It is new grass and old weeds and a lot of bare spots and inbeaded rocks and very uneven ground . Is it better to mulch or just cut. I am going to work on it this fall with new seed and a lot of work. But I need new Blades I should buy reguler baldes or mulching blades? I have heard that mulching blades help with new grass groath Please help Thanks David