I don't have much experience with this type of thing, but my input would be to have a specifc or at least memorable Splitboard.com logo (even if it is just a signature typeface or something) - so that people will see this and start associating it with splitboard.com specifically. For exmaple, everytime I would see the current spiltboard.com logo you have for this website, I would immediately think and associate it to your site and forums, etc.
M Size request is seconded! (or thirded)
Here's another little idea that kind of builds off other people's thoughts