I have a pair of blacks and a wheaton rooster, the black roo is massive but the a total whimp......
The wheaton is a lot leggier but I think he will fill out more when he gets older, he is a whimp right now but he does have the disposition to be a total prick if he gets up his curage.
The hen is more of a loner and quite nervous, hasn't started laying yet(any day now, she is like 7 months old).
Next year I will cross the hen with the wheaton rooster, since she lacks the branching comb and white earlobes, the wheaton has both, the black roo has the branching comb but no white earlobes(the breeder my friend got the hatching eggs from told her the blacks need a lot of work).
I just want the dark eggs so I don't care for purity in colour so much, and if I do later on, I just try to breed the cross towards the black red variety.