I've been looking for a while to buy a good used Scag. I finally located one that I think is a pretty good buy. It's an '02 (possibly '03) Tiger Cat with a 61" deck and 23hp Kohler. It's been kept inside a climate-controlled shop building and was used to mow a 3-acre lot. It looks like it's been very well taken care of and runs really well. The only thing that concerns me is that when you push both steering levers all the way forward it pulls pretty good to the left. Both rear tires were a bit low on air, but I don't think that was the problem. In order to drive it straight I had to let off the right steering lever by about 3-4". Should this be a big concern, or is the normal? My concern is that the hydraulic pump could be going bad and I believe that's over $600 just for the pump. Your input would be appreciated!