I am looking to get a 72inch ztr next year for commerical accounts. Right now I have a 52in hustler super mini. I don't think gas engines are the way to go if you are cutting thick grass and big areas. So i am looking at diesel's. I looked at the exmark xp with the Daihatsu engine very well planned out. Also the scag with the drive shaft driven deck. But it looks like all there other models are slaped up and shipped out. I have not heard good things about scag. And last I am looking at the hustler diesel that they are coming out with but I do not know what engine they are useing I like the super z's and I like the exmark. I know there are other out there please tell me what you guy's like in the diesel and give me some web sites.