A long while ago, I bookmarked a page on the USA Swimming website which had a bunch of shoulder stretching. I think this was it:
www.usaswimming.org/ViewMiscArticle.aspx
Alas, it seems they've completely redone their site, and the above URL just redirects me to a resources page, from which I've been unable to locate the original. I'm about to head off to the Seatback Machine to see if it has a copy, but thought I'd check here in parallel. Thx...