This is my first season in the mowing side of lawn care. My business is picking up pretty well. My problem is that I'm already getting sick of manuvering my new 04 36" exmark fixed deck, belt drive. I was not aware of the big differences between belt and hydro. I don't know whether I should keep this exmark and buy a new hydro, or sell this one and buy one, or buy a little bit bigger mower/rider and get a quick 36 for gate/byard areas. I have properties with some hilly areas and the beltdrive doesn't want to hold. Also, I'm new to cutting, so I get intimidated about certain spots and scalping on the hilly/rolling spots. Any advice would be great. Keep in mind I'm trying to keep cost minimum, but have high quality equip. Also, what's the big difference between Husqvarna commercial Zriders and the residential besides fuel cap. and 3,000?