Jonathan; I greatly appreciate your comments! I've been trying to get a tone that would stand alone as a solo instrument, and your comments suggest that it passes that test. And in my quite subjective and limited view, my guess is that not just any bass can sound like that; it is after all an Alembic. Oh, and the strings, they've been on the bass for about seven months now, so they're a bit dead.
The site does have an option to allow higher quality downloads; but I need to set up a paypal account for that purpose. And I'm not sure whether these tunes are worth doing that; but I'll look into it.