Kyle,
Really wasn't worried about any personal issue. It's just there seemed to be a hole in the system. Chiefs are recognized by Lord Lyon. Armigers are recognized by Lord Lyon. While there is some discussion of who is a "leading member" of a Family in the guidance for a Derbhfine, at least on the Lyon webpage, there is no mention of how a chieftain is recognized, or a sept. So if I understand correctly, hypothetically if I and my brothers and our sons and grandsons became very prolific, and Withnell became a common name in Clan Davidson, the then Chief of Davidson could say Withnell was a sept, and the current head of the family was the Chieftain?