I have been looking at Z's lately, and decided I will by and Exmark when and if i purchase one. My question is that It would be used mostly on residential yards less than 15k square feet. I was thinking about the 44", but the 48 or 52" may be about the same. We have a lot of hills in alabama so not all yards are flat. I just thought the 44 may be easier to maneuver in hilly, tight spaces. Any thoughts from experience would be appreciated.