I don't know why I didn't think of this... it's explained a little here in this article about tilting your scroll saw when you make your cuts on both pieces of stock so that you can get a tight fit.
I'm sure this is normal work, I'm a scroll saw newbie when it comes to this.
Is there any other articles out there that show this more in detail, books, video's etc? It sounds simple enough I just don't picture the entire workings of this.
Thanks all,
Travis