Nick Bentley has just started up a site revolving around strategies for various boardgames. The site is in a blog format but anyone may submit an article. As the designer of Slither I am calling upon the Slitherati of Little Golem to tell me if they would be interested in writing a strategy article on the game. If that seems like a lot of work you can just put the theory in this google-doc (below) bullet-point style. I will put this into an article and develop graphics and format the whole thing (all the boring stuff). Anyway I'm quite certain somebody here has a better understanding of this game than I do lol.
The doc: https://docs.google.com/document/d/1eo8TAw4iLWk_U1sXiSGCOKMk7F3hyxREsbv6FbOwZeY/edit
Nick Bentley's site: Boardgamestrategies.com
