RE: couple questions
Mathews are not adjustable for draw length, they are cam specific. In order to change the draw length you would need to get a new cam and have it installed.
I'm not sure about the 05's, but the older models tended to run long as well. Like if you ordered a 27 inch cam it would actually be more like 27 3/4 instead.
You could probably find a cam on Ebay, but you will still need to have it changed. And you might as well get a new string while you are at it. I would say your looking at over 100 bucks on top of what you pay for the bow.
Paul