Everything is going well, I have about 10 hours on it and gave it it's first oil change today...the only problem was that the hex head plug in the drain pipe didn't unscrew, the whole pipe did, oil drained okay, just had to sop some off the floor . Does anyone replace this rather hokey set-up with a valve type drain, and if so what kind? Second question: I have alot of hills (drainage ditches) that i mow every week, it is just part of the lawn. My Dixon has never had a problem running up and down the slopes either straight up and down, across, or diagonally. The Walker will not go up alot of these and I need help! Mowing the slope with the w/b is really too time consuming, and I hate to be using my dixon on a lawn that i would love to put the $8,000 Walker on, and get some use out of it. I have the 48" ghs deck and low profile tires. Anyone that has any experience, with their ATV knobby style tires, please give some feedback. Yes I can see that these would tear the turf in turns, but I can be careful there, I just need to be able to run up the hills like I always have. Thanks in advance for any knowledge you all can share on the tires or the oil drain valve!