Not yet - those two boys were from extra eggs a buddy threw in a shipment of EOs. Since no Bresse pullets hatched, I decided to go this route with them. They were decidedly male, about 1 lb each - probably 7 weeks IIRC. Their combs went back to pink the next day.
Since I have two, I'm going to try one early with no special diet, and the second one finished on milk and a single grain.
My focus is one the EO, or Basque Hen. The Spanish lit says their full potential is realized in the capon... I haven't tried EO capons yet, I'm still trying to improve my flock. The EO cockerels make awesome fryers at 1.5 - 2lb though!
Some old lit I've read says the best of the best is the poulard... Kassaundra touched on them in this thread I believe.
Thanks for the compliments - when I see these guys out free ranging, I imagine little neon signs flashing 'Sunday Dinner' over their heads... kind of like those "I'm thinking Arby's" cowboy hats!