Hello RDD.
I spent my lunch listening to Barry Rich and the Double Guns of Nashville segment. For visual I perused their web page.
Really well done with a good interview!
Here's a couple ideas for future interviews from the vintage shotgun collector/shooter point of view:
1) a similar episode with gunsmith Dewey Vicknair. From his own website it seems he's a tell'em like I see'em kind of guy and could be a dynamite interview with the right questions
2) visit and talk with restorers/re-sellers like Steve Barnett, or Kirby Hoyt, about today's vintage market and trends.

Those would be gold to me. Thanks for your efforts!
JBL