I am close to pulling the trigger on a used mower on craigslist. Its a Gravely ZT HD and from the pictures/descriptions, seems to be in great condition. Its a decent deal and still has 2 years warranty on the mower (1 year old) The only thing that is scaring me is, in his description, he said he sprays the mower off after every use. This will be my first nice mower purchase so I don't know much about it but I've heard this could be terrible for the mower. I just wanted to get everyone's opinion. I'd appreciate any feedback you could offer. thanks.