I recently purchased a 48" SWB. I bought another set of blades for it from my dealer as well. When I went to change the blades, the replacement ones don't appear to be as wide as the original factory blades. They do not fit as closely to the saddle sides as the original ones. Is this ok? Also, is there anytime in the near future Hustler will offer a "gator-type " blade for this mower?.....Thanks.