Am I the only one that has trouble with traction with my machine? We bought a new Exmark Lazer Z EFI in May, and since then I find that it's a ditch magnet! If the property is not perfectly dry and level, this baby will slide sideways into the deepest pit imaginable. Of course every property I mow, has at least one small embankement, or a tree rot that rides 1/2 inch above the ground that my tires spin over. I swear that if you spit on the grass, and I drive over it, I'll go sideways! The tires are Carlisle Multi-Trac 24X12-12. I've altered the tire pressure from the recommended 13PSI up to 15 and as low as 10, with only minimal improvement at 11PSI. I got nothing from the dealer, am waiting for a response from Exmark (don't expect much), and am looking today for replacement tires that are more aggressive. Oh yeah, I do slow down, if not, this baby will send you on a trip when you least expect it, and you lose all control! I'm hoping that enough of us have experienced this issue that we can collectively get some satisfaction.