What size rings?

Well, my rings just showed up today and I'm a little confused. They listed as being for an 03-05, but my motor is an 06. I figured not much could have changed, and I haven't seen any listings for later model rings, so I went ahead and pulled the trigger. I had my machine shop guy break the glaze on the cylinders, but no boring of note was made. I get the rings and they claim they are file fit, so I take an old ring out with me to check the stock end gap so I can set up the new rings similarly. The stock gap measured in at around .012 inches. I put a new ring in and unfiled the gap is already .024 inches... Is this going to cause any significant issue? I really don't know what else to do aside from ordering oversize rings and grinding them way down until they fit, but I would think at that point that they wouldn't fit right. Any words of wisdom?