Im looking to possibly upgrade from my Gravely 260Z with a 25 HP Kawasaki to a more powerful, efficient machine, preferably diesel. I really like all the features of my 260Z. The 15 front caster tires, locking/pivoting front axle, hydraulic deck lift, etc. Thats what brought me to Gravely from the beginning, most bang for the buck, IMO. The only problem with my 260Z is the lack of power and not the greatest cut quality in the world in certain grasses; however, I didnt notice the poor cut quality when I first bought my 260Z which leads me to think it might be a deck pitch problem. I would like to stay with Gravely. I have heard about some problems with the Daihatsu diesel thats on the Gravely, a timing problem and then just not being the best, wont last the longest. On the other hand, Ive read about others who have the Daihatsu diesels and love them and have had no problems. Would I be making a mistake by getting the Daihatsu over the Kubota? The other mowers Im considering are the Grasshopper 428D and Exmark. Ive heard from many people on here that Grasshopper has, by far, the best diesel mower of any company. Ive used an Exmark XS 31HP B&S with the 60 deck and love the power and the cut. The 2006 Exmarks really caught my eye with the Kubota diesel and the new Triton 60 or 66 deck. Do you think the 25HP Kubota will be enough power for the 66 deck? I am a little reluctant to go out and buy a new machine like that. I worry that the bugs wouldnt be worked out, and thats the last thing a solo operator needs is faulty equipment that is in the shop not making me money. I intend on getting a demo on as many of these as I can, but I am trying to get some feedback before I do in hopes of narrowing my search down. I will be trying out mulching on most of my properties this year, which deck would do the best job mulching, Exmark, Grasshopper, or Gravely? Which one has the easiest system to install the mulching baffles? Weight is also an issue. This put Exmark into 3rd place because they weigh over 1500lbs. and the Gravely is, according to their product booklet, 1200lbs. and Grasshopper is 1430lbs. Cost is another issue, where the Exmarks are, in my opinion, over priced. Another con to the Exmarks are the closet dealer is 25 minutes away and the Grasshopper and Gravely dealer is about 5 minutes away. Any help and info is greatly appreciated. Thanks.