BRs are not lap chicken types IMO. They are calm steady members of a flock, not fearful of humans but don't like being handled. I don't find them birds with outstanding loads of personality, just because they are so calm & steady. I would look @ the flock you already have then @ the BRS & decide which personalities would be the best fit. Personally I probably would not take the lead hen from the group. I figure the runt is bottom so would probably go with whichever hen is no. 3 in the pecking order.