I've used Lazer ZTR's in the past, and am looking to add one in the upcoming year or two. I've demoed the New Diesel version, and raced it against an older Lazer. I don't have to tell you how much faster the diesel is. My question: Has anyone had extra problems with this mower becuase of the weight? Obviously its an extra 2-300lbs and that should have some kind of effect on leaving ruts in wet lawns. I'm just not sure how much of an effect it will really have. I love the speed, but don't want to see tire ruts on every lawn. Anybody have experience with these? Is the weight an issue? Is it worth the extra $$ and the extra speed? Any help or experiences are greatly appreciated.