How wide a tire can I get for a scag 61" W/B Hydro? Do they make a wider tire for it? I have 16x6.5 on there now, and have noticed the ruts. The grass is not wet, and the tire pressure is correct. It seems to me that the tire should have a wider footprint like on some of the ztr's to correct this problem. I have done a search, and have not found anything that can help with this. Has anyone else come across this problem? Do they offer such a thing? Any thoughts or ideas would be appreciated. Thanks.