Bai, I spoke with OW and Mike a few months ago when they were trying to ship some brood chicken to Ben M. I live close from OW and he still has a few chicken in his yard.
The best knife chicken I saw them fight were the Dom Rhead crosses. You can never tell they have dom blood in them unless you look really close. They can cut real good but Mike said that the Doms are too big in size and is hard to breed. You are right about their greys, you cannot win with them in the knife because they are gaff chicken.