I'm thinking about swapping two JD tractor mowers in on a Lazer. The only problem might be one large commercial property. This property has some pretty serious slopes, steep enough that even laying over on the fender sometimes they slide or try to roll. I have no experience with ztr's , but they look less stable than a tractor with 4 controllable wheels. I can mow these slopes now without using a walkbehind, and really don't want to have to use one. If I swap will I be able to mow my slopes with the Lazer? Thanks.