OK, I am about to embarq on an expensive purchase and I have narrowed my search to these three. Here is my situation: 10 acres of lawn - fescue in Missouri - rolling hills w/ lots of bumps right now (I am looking to roll to flatten things out) I like the idea of mulching, but from what I read, it is better to blow???? Ideas? Opinions?? pros and cons??? scalping issues???? Thanks in advance!!!