My pattern doesn't tell me how to join the shoulder seams, it just says to do it. I have bound off the edges, so what stitch do I use to join them? I tried the Mattress stitch and it doesn't work for this.

Thanks!

This link (http://learntoknit.lionbrand.com/cgi-bin/faq-search.cgi?store=/stores/eyarn&faqKey=1) at the lionbrand website has a good description and illustration for seaming shoulders.