Hi, great site I am close to purchasing a 647A commercial grade Z, 48" cut for about 6400. This happens to be the John Deere. I am also looking at a X-mark in the same price range. I see alot of x-mark fans that are very happy with the product line, but to me anyway, the Deere looked alot more on the heavy duty side. The Deere has a 19hp Kawasaki and both are only 48" cuts. Any personal input would be greatly appreciated. Thanks again, Mike Both dealers are great to work with as I have made purchases from both for trimmers, edgers, etc.