I have shot against David Henley a good bit, we would swap out wins back in the day. He is a great shot and a super nice guy (retired fireman and EMT) but his scores did go up about 10 points when he started shooting that bamboo backed recurve he now shoots.
The guy who made David's bow did make between 50 and 75 bows a month, often 12 hours a day 7 days a week, he was REALLY bitten by the bug.
I do think it is time to toughen up the self bow class as to what "is" a selfbow. They could add a selfbow challenge like Twin Oaks in which you had to make your own selfbow, not necessarily on site but made yourself.