I need a 36" mower for 8 city lots, 3 of which are corners. What are the differences in single vs dual hydros? I just sold my 1998 belt drive 48" exmark WB. Do I want to stay away from belt drive? I also have a Ferris 52" 2007 zero turn for larger properties. I own and maintain properties, no external accounts at present. Also, Better Products looks good at thier price point.