Those are truly beautiful birds, in all cases, since my last post (like page 100, or so). Thumper38, that lil French Roo is going to be a show winner!
 
As for the "3 Sebrights" post, that closest one is a BB Red OEGB hen. I raise them, as well. I have 8 different bantam breeds that I raise and sell, and can tell you, 'Brights, Mille's, and BB Reds are the best sellers in the Southern USA.
 
Here in the US, only Silver and Golden 'Brights are approved by the Association as Buffs won't breed true, for very long, I am told. The man that sold me my first Golden pair raises them, and said that was the main issue.
 
As for sexing 'Brights, females have very little comb, at all, and you can watch for the leader (that little point at the rear of the comb) to show in males at a very early age, often just 5 or 6 weeks. Males will often exhibit long sex feathers (in the tail) from early maturity thru the first moult, as their skin cells have not yet developed the ability to turn testosterone into estrogen. That is why 'Brights are "Henny-Feathered", as was Sir John Sebright's intention. He was asked by Charles Darwin to "come discuss Natural selection in Evolution", I have read.
 
As for egg production, if you're getting 5-6 a week from one hen, you are extremely lucky! 2-3 is average for my 7 hens in a week. They are very small, tho, which reduces fertility and egg production, in most breeds. Aften, the smallest classes of Bantams are sterile, that is why truly small reproducing pairs will bring such high prices, as they often do. I have been offered $100 for my Lemon Blue OEGB roo, just because he's so small and fertile. He's the size of a chubby-ish mocking bird. So is his son. 

 My breeding 'Brights are very small, as appears to be the case with the show-winner birds of Thumper's, that we saw the pics of. Those are all truly remarkable birds.
 
As for attitude, I have 2 almost standard-sized Silver Roos, who keep me bloody from feeding times. They attack like they are trying to kill me. I saw a Golden roo at a flea market, this Spring, that was as large as an Ameracauna roo. He probably weighed about 7-9 pounds. He, as are my 2 large Silvers, is probably hatchery stock, which tends to run large in order to make them more hearty. They aren't that easy to raise, as they seldom go broody. I use a 'bator and a barred game hen (preferred method), to hatch and raise my little ones. The game hen is mean as a rattlesnake, and does the best job of caring for the fragile chicks, I simply slip eggs under her after she goes broody. That has been my most successful method, tho I have incubator hatched them and had good luck, as well.
 
Very few birds have the attitude of the Sebrights. Hens are usually the little pet that wants attention and to sit on your shoulder. The roos usually want to kill you, if a female is anywhere in their sight.  
 
I apologize for running on, but have been without a computer, awhile, and missed a bit of the thread. It's great to see more of us raising these crazy little beauties.