I truly hope Jim is passing much of his doublegun knowledge and skills on to his "apprentices". When I told him of spending an hour with Bo Whoop in Savannah, before it went to auction, he really went to talking about it. He said after he completed it he and someone else took it down into a swamp. His friend fired the gun a time or two, after Jim had removed himself from the area and gone some distance away, to try and determine if it really did make an unusual report when fired in a duck swamp. That claim was why it was nicknamed "Bo Whoop". I asked Jim if it did. He smiled and shook his head "no".
But then, Jim probably didn't have any of the original Super X loads to try either ..............
SRH
