Nitty Gritty Grits Band is the most marvy name yet for your family band Richard. Great thinking Joel.
BBTTR - Preparation is the top advice. Next would be expect the worst. Of course, that goes along with being prepared. Just like a good boy scout. Next would be the mixing itself. As you've alluded to, the best recording in the world is only as good as the mix and sound person. Way to many of them don't know what they're doing. A pity.