Hello, I am new to this forum. I have 2 properties with approx. 1.2 acres each of grass to mow. One property has three hills of 18 to 20 deg slopes. The other is one big hill, approx 16 deg, with intermittent semi flat areas. I purchased a Simplicity ZT2050 on Saturday, 4-17-04. I brought it home and tried to mow my properties with it. (I have used a ZT mower in the past so I don't think operation of the equipment is the problem.) I unloaded it from the trailer, and started to mow the first hill. I proceeded to spend the rest of my mowing experience either sliding down or attempting to get back up these hills. The tractor has very little traction and slides almost immediately if I try to operate on any kind of angle other than straight up and down. The mowing conditions were absolutely dry, no rain for 3 days. Mowing up and down is impossible on one of the hills due to deep ditch at the bottom. (Upon reading the manual when I got home, it states the tractor is not to be used on hills exceeding 10 deg). This tractor is being returned to the dealer on Monday. What suggestions do you have for its replacement.