I just bought a Ferris IS700Z. BS 26 Vanguard twin with Industrial Service double stage air cleaner, 61" wide, deluxe seat, full 52" plastic/metal framed canopy, golf cart traction tires, extra seat springs. 3 or 4 year warranty, I forget. I feel like a king on his throne. It will last me the rest of my life. The Vanguard is a real power house and good on fuel like the other BS twins I have (22, 20, and 18 hp).
I got tired of my back hurting every time I wanted to mow. Now it doesn't. In what I will save in medical bills, not counting the lack of pain, it easily will pay me back for the purchase and then some. Mows a flawless pasture....looks like my lawn and no tractor ruts and holidays.