I have noticed some soil compaction with my snapper pro s150xt. Don't run in the same path every time you mow. These mowers are pretty heavy. The manual on mine says it has a dry weight of 1107 lbs. that's one reason they mow hills well. My dad has a s200xt and the foot print on his mower is much lighter. The only difference I see is he has wider tires. Spreads the weight over a larger surface area. I just make sure that I either change the direction I mow every other time, or make sure I don't run in the same tracks I mowed the time before. Seems to be working for me.