Sutton is on Facebook (don't know about Beau), if you are, shoot him a message and ask yourself! I've cold-messaged a few guys about strings and gear, and they've been gracious about giving advice.
Beau was interview by Art of Slap Bass
and discusses gear, and at the end there is a link to a "Ask Beau Sample" forum, which looks pretty much dead. He also has a Myspace page, so maybe he gets mesages there.