Bearded hen or not it's still a hen to me and if it is big one it's better to let it's progeny increase like the bigger the breeding stock the better.
It goes for the toms also. If I were to pick between 2 Toms side by side I'll probably shoot the smaller Tom if I know there are not too many of them big ones.
Size is one thing that's genetically inherent and would love to have all turkeys in my bush size extra extra large.