Honestly, they've shaped up beautifully and I would have a difficult time picking. #29 and #31 I would cull, due to poor comb type, some colour imbalance, and a markedly shallow chest, but between #50, #27, and #38 it would be a close race. The last two are a tad dark to my eye and seem like their last hackles are pure black, but they all have decent type, if a bit loose feathering. I slightly prefer the back and comb on #27, though #38 might look more balanced if he were set up at a slightly different angle. So---#27 and #50 would be my final picks out of the batch. I see nice pure black chests on all of them, which I am a bit picky about.